Answer:
The nucleus contains the cell ‘s DNA and directs the synthesis of ribosomes and proteins.
Found within the nucleoplasm, the nucleolus is a condensed region of chromatin where ribosome synthesis occurs.
Chromatin consists of DNA wrapped around histone proteins and is stored within the nucleoplasm.
Ribosomes are large complexes of protein and ribonucleic acid (RNA) responsible for protein synthesis when DNA from the nucleus is transcribed.
Explanation:
The cell nucleus produces new mRNAs that will be used as templates for protein synthesis in the ribosomes.
During gene transcription in the cell nucleus, a fragment of DNA called gene is used as a template to create a complementary mRNA. Subsequently, the mRNA travels to the ribosome in the cytoplasm where it is used as template to synthesize a protein by a process called translation.In consequence, the ribosomes act as protein factories in the cell that work together with the cell nucleus to create new proteins.In conclusion, the cell nucleus produces new mRNAs that will be used as templates for protein synthesis in the ribosomes.
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An unknown alien body visits Earth. Scientists study it to determine if it is alive and
notice the following things about it:
. it is made of cells
. it can reproduce
. it does not grow or develop
. it does not maintain homeostasis
it can adapt to its surroundings
. it uses energy
Based on these observations, is this alien living or not?
it is living because it is made of cells, uses energy, and reproduces
it is living because it has all the characteristics of life
it is non-living because it does not have all the characteristics of life
Answer:
The answer is A, it is living because it is made of cells, uses energy, and reproduces.
Explanation:
The alien body exhibits several characteristics of life such as cellular structure, reproduction, and energy use. However, it lacks two crucial characteristics: growth and maintaining homeostasis. Therefore, it cannot be definitively classified as a living organism based on the observations.
Explanation:The concept of life is defined by several key characteristics that most living entities possess, these include growth and development, reproduction, use of energy, cellular structure, adaptation to the environment, and maintaining homeostasis. Given the observations for this alien body; its composition of cells, ability to reproduce, adapt to its environment and use energy indicates that it possesses many attributes of a living organism. However, its inability to grow and develop and lack of homeostasis complicates the classification of this alien as a living organism. In most definitions of life, homeostasis and growth are key. Therefore, strictly speaking, even though this alien exhibits some characteristics of life, it is missing others, namely growth and homeostasis and cannot be classified definitively as living or non-living based on the observations given.
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Do your cells use food to directly power their various functions? Explain your answer (3 points)
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Answer:
No, your cells does not use food to directly to power their various functions.
Explanation:
The food that we eat is the fuel to our body. But this food has to converted into energy. This conversion of food into energy is carried out by mitochondria through a process called Cellular respiration. The food we consume is first broken down into smaller particles.the glucose in the food we eat undergoes several chemical reaction to produce ATP (adenosine triphosphate).This ATP is the form of chemical energy that is utilised by the cell for performing various actions walking , running etc.
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If you went 200 miles out to sea off the Oregon coast and drilled into the sea floor, you would be drilling into ______________.
A) continental crust
B) oceanic crust
Answer:
Oceanic crust
Explanation:
I would assume that with the contenential crust having position mostly on the contenential areas, oceanic crust would be the right answer ;200 miles off.
Which of the following is found in plasma? A. Water B. Oxygen C. Hormones D. All of the above
Answer:
it's water
Explanation:
Along with water, salt, and enzymes, plasma also contains important components. These include antibodies, clotting factors, and the proteins albumin and fibrinogen.
Ecosystems & Blomes
Which of the following features would help a plant adapt to a tropical forest biome?
A. deep, branching roots
B.
thick, rough bark
C. waxy leaves with drip tips
D. wide leaves with fine hairs
Plant adapt to a tropical forest biome by C. Waxy leaves with drip tips Therefore , C. waxy leaves with drip tips is correct .
Tropical forests are characterized by high temperatures, abundant rainfall, and high humidity. In such an environment, plants need to have specific adaptations to thrive. Let's analyze the options:
A. Deep, branching roots: While roots are vital for nutrient uptake and stability, deep branching roots are not specifically adapted to a tropical forest biome.
These types of roots are more common in plants that need to access water from deeper soil layers, which is not a primary concern in the consistently moist tropical forest.
B. Thick, rough bark: Thick, rough bark is a feature that provides protection to the plant from external factors like physical damage, fire, or extreme weather.
However, it's not a key adaptation specific to a tropical forest biome.
C. Waxy leaves with drip tips: This is a highly relevant adaptation for a tropical forest biome.
leaves help reduce water loss through transpiration, and drip tips assist in shedding excess water that accumulates due to high humidity or heavy rainfall.
D. Wide leaves with fine hairs: Wide leaves can capture more sunlight in the understory of the dense tropical forest.
Fine hairs might help in certain circumstances, but they are not as crucial as waxy leaves for water retention and dealing with high humidity.
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Consider the classification levels of a honey bee.
Eukarya
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Apis
mellifera
To which class do honey bees belong?
Answer:
Insecta
Explanation:
The classification levels are the following from broadest to the most specific:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
In your selection it is listed in that order:
Domain --- Eukarya
Kingdom --- Animalia
Phylum --- Arthropoda
Class --- Insecta
Order --- Hymenoptera
Family --- Apidae
Genus --- Apis
Species --- Mellifera
When you name the organism, we use the two name or binary naming system, getting the genus and the species. So the scientific name of the honey bee is: Apis mellifera
Honey bees belong to the class Insecta in the biological taxonomy. This is the fourth level in the classification system for organisms, coming after Domain, Kingdom, and Phylum, but before Order, Family, Genus, and Species.
Explanation:The question relates to the classification levels, also known as taxonomic ranks, of a honey bee. The levels listed are part of a hierarchical system used in biology to classify all living organisms. The levels from broadest to narrowest are: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. In relation to honey bees, you had listed: Eukarya (Domain), Animalia (Kingdom), Arthropoda (Phylum), Insecta (Class), Hymenoptera (Order), Apidae (Family), Apis (Genus), and mellifera (Species). Therefore, honey bees belong to the class Insecta.
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Iron is needed by the body to make_____
Answer:
Hi there!
the correct answer to this question is: Hemoglobin
Explanation:
Iron is needed by the body to make hemoglobin.
Answer:
Iron is needed by the body for optimal functions.
Explanation:
Iron has various functions in the body. A well known function is its presence in the muscle as haemoglobin which helps transport blood. It is also present in the muscle (myoglobin); and in molecules (cytochromes)
What are the ways in which captive breeding helps protect biodiversity? Check all that apply
Captive breeding can increase population numbers.
Captive breeding can prevent deforestation.
Captive breeding can result in overpopulation.
Captive breeding can help remove species from the Endangered Species List.
Captive breeding can result in the eventual release of offspring into the wild.
Answer:
Following are the ways captive breeding helps conserve biodiversity:
Captive breeding can increase population numbersCaptive breeding can help remove species from the Endangered Species ListCaptive breeding can result in the eventual release of offspring into the wild.Explanation:
Captive Breeding:
Captive breeding is an ex-situ conservation technique (taking the animal out of its natural habitat to increase population numbers in zoos or sanctuaries). Captive breeding involves selective breeding of endangered species to help produce a sizable population that can later be introduced back into the wild when their habitat improves.
Captive breeding programs include zoos, sanctuaries located away from the animal's original habitat. For example, the Toronto Zoo has operated a captive breeding program for the Blanding's turtle since 2012. The turtles are kept their for 2 years after birth and then released back into the wild.
Answer:
Captive breeding can increase population numbers.
Captive breeding can help remove species from the Endangered Species List.
Captive breeding can result in the eventual release of offspring into the wild.
Explanation:
Which of the following is NOT a known side-effect of alcohol on hormonal balance?
Estrogen-androgen imbalance in males
Reduction of fertility in women
Early menopause in women
Answer:
Estrogen-androgen imbalance in males
Explanation:
Estrogens and andogens are hormones. Estrogens are produced by the body in greater amounts in females. They are necessary for normal sexual development of the female and for regulation of the menstrual cycle during the childbearing years. Androgens are produced by the body in greater amounts in males.
Final answer:
Early menopause in women is not a known side-effect of alcohol on hormonal balance. Alcohol consumption leads to hormonal imbalances that may affect fertility, but menopause is mainly influenced by the natural aging process.
Explanation:
The question pertains to the side effects of alcohol on hormonal balance. Among the given options, the assertion that alcohol can lead to early menopause in women is NOT a known side-effect. While alcohol does affect hormonal balance, leading to issues such as estrogen-androgen imbalance in males and negatively affecting female fertility, early menopause is more directly related to the aging process and the decline of ovarian function, rather than alcohol consumption. Menopause involves a decrease in estrogen and progesterone levels as a result of ovaries becoming less sensitive to gonadotropins due to aging.
Which of the following is not part of the cell theory?
A. Every living thing is composed of cells.
B. Cells come from pre-existing cells.
C. Cells are the basic unit and structure of all living things.
D. Every cell has a nucleus that contains genetic material.
Answer:
The option D) 'Every cell has a nucleus that contains genetic material' is not a part of the cell theory.
Explanation:
The cell theory has three main postulates which are:
All living things are made up of a cell or different cells.All cells arise from pre-existing cells Cells are the basic unit of life.The cell theory does not claim that every cell shall have a nucleus. The prokaryotes lack a nucleus yet still are living things. However, all cells will have genetic material in the form of DNA or RNA.
describe Green house its effect, cause and preventive measures
Answer:
Here is the ans
Explanation:
The green house effect is the effect of the gases produced inside the green house being released out side like Methane and Carbon di oxide which are destroying the ozone layer in the atmosphere.
The cause of greenhouse gases are the building of more greenhouses in cold places
- Methods to prevent the greenhouse effect
1. Afforestation: Afforestation on a large scale helps in decreasing the release of carbon dioxide in the atmosphere.
2. Conservation of energy: Switching to renewable sources of energy such as solar energy, wind energy, etc will reduce the use of fossil fuels.
Which organelle does photosynthesis occur in?
Answer:
Chloroplast
Explanation:
Photosynthesis occurs in the organelle called the chloroplast. The chloroplast contain the chlorophyll needed to capture the light energy so that it can be processed into energy and food for the plant. Chloroplasts are made up of small sacs called thylakoid membranes.
According to the chart below, how do the gas giants differ from the terrestrial planets? (3 points) Image describing the composition of the terrestrial planets (Mercury, Venus, Earth, and Mars) and the gas giants (Jupiter, Saturn, Uranus, and Neptune) of our solar system. Mercury is composed of 45 percent core, 50 percent mantle, and 5 percent surface crust. Venus is composed of 15 percent inner core, 20 percent outer core, 60 percent mantle, and 5 percent surface crust. Earth is composed of 5 percent inner core, 35 percent outer core, 55 percent mantle, and 5 percent surface crust. Mars is composed of 50 percent inner core, 45 percent outer core, and 5 percent surface crust. Jupiter is composed of 5 percent rock, 15 percent water, 60 percent metallic hydrogen, and 20 percent hydrogen gas. Saturn is composed of 10 percent rock, 20 percent water, 30 percent metallic hydrogen, and 40 percent hydrogen gas. Uranus is composed of 30 percent rock, 35 percent water, and 35 percent hydrogen. Neptune is composed of 15 percent rock, 60 percent water, and 25 percent hydrogen gas. Select one: a. The gas giants do not have solid surfaces. b. The gas giants have an iron core. c. The gas giants lack hydrogen gas. d. The gas giants do not contain water.
Answer:
A, The gas giants do not have a solid surface
Explanation:
Well first off from the information given, we know that we can rule out option C considering gas giants all include hydrogen. We can also eliminate option B since no where in the information do they say the gas giants have an iron core. Lastly, we know it's not D because all the gas giants have water in them. This leaves us with the only other option of A
Sidenote: I also googled, "Do gas giants have solid surfaces" and the answer was "Unlike rocky planets, which have a clearly defined difference between atmosphere and surface, gas giants do not have a well-defined surface"
Answer:
A. The gas giants do not have solid surfaces
Explanation:
what is the purpose of cell differenatition
Answer:
Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.
Explanation:
Cell Differentiation Significance.
Cell differentiation is an important process through which a single cell gradually evolves allowing for development that not only results in various organs and tissues being formed, but also a fully functional animal.
summarize dnas importance to you
Answer:
DNA are important for inheritance, coding for proteins and the genetic instruction guide for life and its processes
Explanation:
DNA are well known for cellular life. It also helps in the storage of information for long term. In it, has the information for the making of different components of cell. i.e. protein and RNA molecules. They have information like from the development, to reproduction til the death of the cell. It works by replication transcription and translation. The genetic information's are stored like bookshelf or may say like a hard drive which is found to be quite boring. They are made up of nucleotide.
Write three examples of healthy behaviour. Consider your own healthy behaviors as well as those you might imagine practicing in future?
Answer:
1 have friends that are good influences
2 reject people who are bad onfluences
3 be a good influence
What are the two specific concerns of species diversity?
Species diversity is concerned with both
Species diversity concerns the variety of species and genetic variability within those species, which is crucial for adaptation and ecosystem services. Preservation efforts aim to mitigate threats like habitat destruction, climate change, and invasive species.
Explanation:The two specific concerns of species diversity are related to the variety and variability within and among species and between ecosystems. Firstly, it involves the diversity of species themselves, which is an index of how many different species are present in a given ecosystem or the Earth as a whole. Estimates suggest Earth inhabits between 5 to 30 million species, though the exact number remains uncertain. The second concern is genetic diversity, which refers to the variation in genes within these species. This range of genetic material is critical for adaptation and the success of species in diverse environments.
Genetic diversity is fundamental for a species' adaptation to local conditions and its potential to cope with environmental changes. It also affects our agriculture as different crop varieties, for instance, are often adapted to different growing conditions. The preservation of biodiversity is thus crucial for maintaining the ecosystem services that support human life, such as pollination, nutrient cycling, and pest control.
Increasingly, environmental and conservation efforts are directed towards protecting this biodiversity by reducing threats like habitat loss, climate change, and the introduction of invasive species, while promoting sustainable resource use and habitat restoration. International treaties and laws such as CITES and the Endangered Species Act are in place to protect this diversity. Nonetheless, maintaining biodiversity requires a multifaceted approach, including preservation strategies and changing human behaviors and beliefs.
In an ecosystem where the owls eat mice the carrying capacity of both populations has been reached . how would the migration of live affect the carrying capacity of the owl population
Answer:
It would cause a decrease in the carrying capacity of the owl population.
Explanation:
The relationship between a predator and prey is unique. Both the population of a predator and prey gets affected if changes in one of them occur.
If mice migrated from the ecosystem, this will mean that there will b little food available for the owls on that ecosystem. As a result, they will compete for food. Some of them would get killed due to lack of food. Others will migrate to places where they can find food. Hence, the carrying capacity of the owl population would decrease.
The chart shows parts of the body at different levels of organization.
Which picture can BEST be used to fill in box S?
Answer:
its C
Explanation:
Following the hierarchical levels of body organization, the picture that will best be used to fill in box S would be C.
The different levels of organizations in hierarchical order are:
cellstissuesorganssystemsCells are the basic and simplest unit. An aggregate of similar cells functioning as a unit form a tissue. Tissue aggregates form an organ while 2 or more organs coming together functionally form a system.
The picture started with cells - the blood cell followed by tissue, and then an organ. What should follow automatically should be a system. The only option that is a system is C.
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3. Compare and contrast Neanderthals, Cro-Magnon
humans, and early humans.
Cro-Magnons were straight limbed and tall compared to Neanderthals and early humans.
Explanation:
Neanderthals are more primitive but stronger. They were stockier, with shorter limbs and a larger chest and nose. The head is much longer with more pronounced facial front.
Cro-Magnons are robustly built and powerful. The body was generally heavy and solid, with strong musculature. The forehead was straight and face was short and wide.
Early humans were small in size. They had long arms and short legs. They required larger digestive tract because of their plant based diet.
Final answer:
Neanderthals were robust and adapted to cold climates, with evidence of interbreeding with Homo sapiens. Cro-Magnon humans, or early modern humans, were anatomically similar to today's humans and known for their art. Early humans, including Homo habilis and Homo erectus, developed basic tool use and controlled fire, with Homo habilis displaying a larger brain size and complex behaviors.
Explanation:
When comparing Neanderthals, Cro-Magnon humans (early modern humans), and early humans such as Homo habilis, Homo erectus, and archaic Homo sapiens, we are essentially exploring the fascinating journey of human evolution. Each of these groups represents significant steps in the development of humans, showcasing adaptations and traits that have either persisted or vanished over time.
Neanderthals: Known for their robust build and large cranium, Neanderthals were well-adapted to cold climates, evidenced by their physical characteristics. They produced sophisticated tools, had a culture, and there is evidence suggesting they buried their dead. Recent genetic studies suggest that Neanderthals interbred with Homo sapiens, contributing DNA to modern humans outside Africa.Cro-Magnon Humans (Early Modern Humans): Anatomically similar to modern humans, Cro-Magnon humans represent early Homo sapiens with a lighter build compared to Neanderthals and more refined tool use, including blades and needles. They are noted for their art, which includes cave paintings and sculptures.Early Humans: Including Homo habilis and Homo erectus, these early hominins show significant developments, such as the use of basic stone tools (Oldowan and Acheulean industries) and control of fire by Homo erectus. Homo habilis is known for a larger brain size compared to earlier hominins and evidence of more complex behaviors.The evolution from Homo habilis through Homo erectus to both Neanderthals and early modern humans demonstrates a complex web of development, including physical and cultural evolution. The appearance of sophisticated tool use, art, and increasing brain size play crucial roles in these transitions.
(01.04 LC)
Mason is preparing to present the results of a study he did to track the germination rates of bean seeds treated with growth hormones. He wants to show the
different rates of growth as they progressed over time. Which of the following would be best for conveying growth rates over time?
Simple table
Answer:
A line chat would be the best
Hello. This question is incomplete. The full question is:
"Mason is preparing to present the results of a study he did to track the germination rates of bean seeds treated with growth hormones. He wants to show the different rates of growth as they progressed over time. Which of the following would be best for conveying growth rates over time? a)Simple table b)Line chart c)Venn diagram d)Pie chart "
Answer:
b)Line chart
Explanation:
Line charts are the ideal representation to show changes over time. For this reason, if Mason wants to show the different growth rates of bean seeds as they progress over time, he should choose this type of representation.
In summary, we can say that line graphs are composed of the x and y axes. In addition, its composition is determined by the presentation of values related to periods of time, distributed along these axes.
Describe the characteristics of sound energy.
Explanation:
Sound travels in the form of a wave. Waves are characterized by three basic quantities. They are frequency, speed, and amplitude. Two of the main characteristics of sound are pitch and loudness, which in turn are determined by the frequency and amplitude of the wave, respectively.
Final answer:
Sound energy is a type of wave energy characterized by pitch, loudness, and tone. Pitch refers to the perceived frequency of a sound wave, loudness refers to the amplitude of the wave, and tone refers to the quality or timbre of the sound.
Explanation:
Sound energy is a type of wave energy that is created by vibrations and is transmitted through a medium such as air, water, or solid objects. It is characterized by several properties:
Pitch: The perceived frequency of a sound wave, which determines whether a sound is high or low.Loudness: The amplitude of a sound wave, which determines how soft or loud a sound is.Tone: The quality or timbre of a sound, which is determined by the combination of different frequencies present in the sound wave.For example, a high-pitched sound has a high frequency, while a low-pitched sound has a low frequency. Similarly, a loud sound has a large amplitude, while a soft sound has a small amplitude. The tone of a sound can vary depending on the specific combination of frequencies present.
If your parent cell started out with 8 chromosomes, how many sister chromatids would be produced during interphase? during mitosis
Answer:
16, during interphase DNA replicates
Answer:
The response is 32 sister chromatids
Explanation:
During interphase, DNA replicates to produce two copies (i.e., 16 chromosomes) that are further distributed among the two daughter cells. Moreover, each chromosome has 2 sister chromatids attached by the centromeres. In consequence: 16 x 2 = 32
Which type of mechanical weathering are mostly likely represented below
Answer: Earth scientists often divide mechanical weathering into two major categories: fracturing, which includes frost- and salt-wedging, and abrasion, such as sandblasting. Rock Abrasion.
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Name 5 roles of proteins
1. Provide structure
2. Causes Biochemical Reactions
3. balances fluids
4. transports and stores nutrients
5. provides energy
cyanide is a poison that prevents mitochondria from using oxygen. as a result, the mitochondria cannot produce what?
Answer:
the mitochondria would not be able to produce energy
Explanation:
"the mitochondria is the powerhouse of the cell"
Final answer:
Cyanide poisoning inhibits the enzyme cytochrome c oxidase in the electron transport chain, preventing ATP synthesis and increasing the pH of the intermembrane space due to reduced proton pumping.
Explanation:
Cyanide is a poison that has a high affinity for the enzyme cytochrome c oxidase, which is an essential component of the electron transport chain in mitochondria. The enzyme's inhibition by cyanide prevents the transport of electrons from cytochrome c to oxygen, disrupting the electron transport chain and halting ATP synthesis.
As a result of cyanide poisoning, the electron transport chain cannot create an electrochemical gradient across the mitochondrial membrane, which is necessary for ATP production through oxidative phosphorylation. Thus, ATP synthesis stops, which can lead to cellular energy deficit and ultimately cell death.
Furthermore, due to the disruption of the electron transport chain, the pH of the intermembrane space would increase as proton pumping by the chain's complexes is halted. This decrease in the proton gradient further prevents ATP synthesis.
Which is NOT part of the fossil record?
imprint
preserved remains
fossil bones
living unicellular organisms
Living unicellular organisms are not part of the fossil record, which only includes preserved remains from the past, such as imprints, preserved remains, and fossil bones.
Explanation:The item that is NOT part of the fossil record is living unicellular organisms. The fossil record consists of the preserved remains or traces of organisms that lived in the past, which include imprints, preserved remains, and fossil bones. Living unicellular organisms are not part of the fossil record because they are still alive and the fossil record only includes once-living organisms that have been preserved after death. Conditions such as being covered quickly by sediments, or preserved by freezing in glaciers or in resin can lead to fossilization, but these conditions do not apply to living organisms.
reaction that does not require oxygen
Answer:
The reaction is called Anaerobic respiration.
Explanation:
The reaction that doesn't require oxygen is known as Anaerobic reaction. Anaerobic respiration is the ability of an organism to produce energy in the form of Adenosine Triphosphate (ATP) without using oxygen. Instead, sulfate, nitrate or sulfur is used. To break down the equation above, organisms that use anaerobic respiration to produce energy start with glucose. Glucose is sugar, and the same sugar from the photosynthesis equation 6CO2 + 6H20 = C6h1206 + 6 02. Organisms take glucose, and through the electron transport chain, produce ethanol or lactic acid, CO2, and ATP.
You go to the doctor, only to find out that you have a case of Strep Throat. Your
doctor explains this is caused by a bacterium called Staphylococcus pyogenes.
Based on the underlined portion of this bacterium's genus, what shape are the
bacteria that cause strep throat?
Ofilamentous
Orod
O spherical
Ospiral
Answer:
the rod shaped bacteria
Explanation:
The fact that this is a Gram-positivebacterium means it has a very thick cell wall compared to a Gram-negativebacterium. Since this bacterium is known as a 'coccus', that automatically means it has a round shape, as opposed to a rod-shaped bacteria.
The underlined portion of the bacterium's genus, "Staphylococcus pyogenes," indicates that the bacteria that cause strep throat have a spherical shape. The correct answer is 3. "spherical."
Bacteria are single-celled microorganisms that play a significant role in various ecosystems. They are among the most abundant and diverse organisms on Earth and can be found in almost every environment, including soil, water, air, and even within the human body.
The term "Staphylococcus" refers to bacteria that typically form clusters resembling grapes, which is a characteristic of spherical or cocci-shaped bacteria. Strep throat, however, is caused by a different bacterium called Streptococcus pyogenes, which also belongs to the cocci-shaped bacteria.
The term "Staphylococcus" in the question seems to be an error, and the correct genus for the bacteria causing strep throat should be "Streptococcus." Therefore, the correct answer is 3. "spherical."
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Which option for drinking water uses the fewest resources from the
environment if it is used many times?
A. Tap water out of a plastic cup
B. Bottled water out of a plastic bottle
c. Bottled water out of a steel battle
D. Tap water out of a steel bottle
Answer:
B tap water out of a plastic cup
Explanation: