Answer: solar energy, carbon dioxide, water, chlorophyll
Photosynthesis is a natural process through which plants prepare their own food by utilizing atmospheric carbon dioxide, water and sunlight. This process occur specifically in the leaves of the plants. The sunlight is trapped by the chlorophyll pigment present in the chloroplast organelle of the present in the leaves. The food produce in the form of glucose and oxygen is produced as a byproduct of this reaction.
Over long periods of time, rock materials erode down the side of a mountain. What type of rock would you must likely find at the bottom of the mountain
Why is it important to use the same restriction enzyme on DNA from the two organisms?
Lichens result from Symbiosis between a fungus and
A. Photosynthetic bacteria.
B. Euglena.
C. Photosynthetic algae
D. both (A) and (C)
Answer:
D. both (A) and (C)
Explanation:
Lichen is an organism formed from the symbiotic association between non photosynthetic fungi and photosynthetic algae or bacteria.
The algae provides food (through photosynthesis) to the fungi while the fungi in return absorbs water and other materials that the algae need to carryout photosynthesis.
The correct option is D.
The Atomic Theory states that protons and neutrons are packed closely together in a small nucleus and electrons are found surrounding that nucleus.
Which of the following statements explains why this is considered to be a scientific theory?
Answer
It is a scientific hypothesis that has been proven by more than one experiment.
It is the best explanation because it is a culmination of many scientific investigations.
It is an educated guess that has been voted on by the majority of the scientific community.
It is the best explanation because it supports the beliefs and opinions of most
Answer:
The correct answer will be option A.
Explanation:
A scientific theory is a well-substantiated idea and opinion which explains the natural phenomenon. For a theory to be a scientific theory has to be:
1. well supported by the observations and experiments.
2. supported by repeated experiments and hypothesis.
Since in the question the scientific theory was proposed by more than one scientists who performed many experiments after Dalton who proposed the atomic theory. These scientists modified and revised the theory with their discoveries like JJ Thompson discovered electrons, Ernst Rutherford discovered protons and James Chadwick who discovered neutrons.
Thus, option A is the correct answer.
When clouds trap heat emitted from Earth's surface, they are acting as
a. Heat shield
b. Magnet
c. Greenhouse gas
d. Satellite
When clouds trap heat emitted from Earth's surface, they are acting as a Greenhouse gas.
What is a greenhouse gas?Greenhouse gases (also known as GHGs) are gases in the earth's atmosphere that trap heat. During the day, the sun shines through the atmosphere, warming the earth's surface. At night, the earth's surface cools, releasing heat back into the air. But some of the heat is trapped by the greenhouse gases in the atmosphere.
Why is it called greenhouse gases?A greenhouse gas is called that because it absorbs infrared radiation from the Sun in the form of heat, which is circulated in the atmosphere and eventually lost to space.
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describe the relationship between energy stored in food and ATP
The energy stored in food is used to produce ATP, which is the primary energy source for most cellular processes in living organisms, and the food is broken down into its constituent molecules through the process of digestion.
What is ATP in food?Cellular respiration is a series of chemical reactions that occur in the presence of oxygen, called "aerobic respiration," or in the absence of oxygen, called "anaerobic respiration," in aerobic respiration, glucose(food) is broken down into carbon dioxide and water in a series of reactions that involve the transfer of electrons from glucose(food) to oxygen and that make ATP through a process called "oxidative phosphorylation."
Hence, the energy stored in food is used to produce ATP, which is the primary energy source for most cellular processes in living organisms.
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Trace the path of a labeled carbon atom through the biological processes of photosynthesis and respiration. The atom will start its journey inside a carbon dioxide molecule and it will end in the air inside a new carbon dioxide molecule. Your mission is to use your knowledge of photosynthesis and respiration to explain what happens to the carbon atom in these processes.
A labeled carbon atom begins in a molecule of carbon dioxide, gets incorporated into glucose during photosynthesis, and then is released back into the atmosphere as a new carbon dioxide molecule during cellular respiration. This demonstrates the carbon atom's vital role in the carbon cycle, highlighting the interrelated nature of photosynthesis and respiration in energy transfer within ecosystems.
Trace the Path of a Carbon Atom through Photosynthesis and Respiration-
The journey of a carbon atom starts in a molecule of carbon dioxide during the process of photosynthesis. In this process, plants capture solar energy and use it to convert carbon dioxide and water into glucose, releasing oxygen as a byproduct. Our carbon atom becomes part of a glucose molecule, specifically stored in the covalent bonds that will later be broken during cellular respiration.
During cellular respiration, the carbon atom is released from glucose as part of a carbon dioxide molecule, which is then expelled from the organism. It is interesting to note that the covalent bonds formed during photosynthesis can be incredibly long-lasting and stable. The energy released during cellular respiration is partly used to create ATP (adenosine triphosphate), the energy currency of cells.
Finally, the carbon atom finds itself back in the atmosphere as part of a new carbon dioxide molecule, ready to be used again in the ongoing cycle of photosynthesis and respiration by plants and other living organisms. This illustrates the significant role of these two processes in the carbon cycle, ensuring the transfer and transformation of energy through ecosystems.
Where are the longest continuous mountain ranges on earth located?
Along the ocean floor
How does taxonomy help us understand relationships among organisms on earth? What kinds of evidence do scientists use in taxonomy?
Final answer:
Taxonomy, involving the classification and naming of organisms, utilizes morphologic and genetic evidence to elucidate the evolutionary relationships among species. Systematics and taxonomy aim to map the evolutionary pathways of life on Earth, represented in phylogenetic trees, underscoring shared origins. The taxonomic system, notably binomial nomenclature and the division into three domains, facilitates the study of life's vast diversity.
Explanation:
Understanding Taxonomy and Its Importance
Taxonomy is the science of classifying organisms into a systematically organized framework based on their shared characteristics and evolutionary relationships. This classification is vital as it helps scientists to organize the vast diversity of life on Earth, making it easier to study and understand how organisms are related to each other. The taxonomic classification system comprises different levels, including domain, kingdom, phylum, class, order, family, genus, and species.
Key Components and Evidence in Taxonomy
The two main types of evidence used in taxonomy and determining evolutionary relationships are morphologic evidence (related to the form and function of organisms) and genetic evidence. Together, these types of evidence enable scientists to construct phylogenetic trees, which illustrate the evolutionary pathways of life on Earth. The concept of binomial nomenclature, introduced by Carl Linnaeus, is also crucial in taxonomy, providing a standardized method for naming organisms with a two-part Latin name that signifies their genus and species.
Systematics and taxonomy are deeply intertwined with phylogeny, as they all aim to understand the evolutionary relationships among organisms. This understanding is further visualized through phylogenetic trees, which not only display these relationships but also hint at the evolutionary history and common ancestors of different organisms. The tree of life concept, with a single common ancestor branching out into the diversity seen today, emphasizes the shared origins of all life forms.
Importance of the Domains of Life
The classification into three domains of life—Bacteria, Archaea, and Eukarya—underscores the fundamental distinctions at the highest level of organization. This division reflects key evolutionary milestones and relationships among all living organisms.
There are 64 codons and 20 amino acids. Which of the following is not true?
A. Several different codons can specify the same amino acid.
B. The AUG codon, or methionine, is the start codon.
C. All amino acids are linked to a codon.
D. Each amino acid is specified by only one codon.
Answer: The option that is not true is D) Each amino acid is specified by only one codon.
Codon can be defined as the sequence of three nucleotides ( present in DNA or mRNA) that corresponds to a particular amino acid. It helps in the process of translation as different amino acids ( that are linked to codons) are assembled to give a particular protein according to the sequence of codon.
There are 64 codons and 20 amino acids that make up the proteins present in the living systems. This indicates that several different codons can correspond to the same amino acid.
For instance, amino acid Valine is coded by four codons that is GUC, GUG, GUA, GUU.
Thus, option D) is incorrect.
Cells use __________ to take in large molecules or other cells.
active transport by endocytosis
passive transport by osmosis
active transport by carrier proteins
passive transport by diffusion
Ben observes that his car will not start. What is a good testable hypothesis?
1.The car will not start.
2. The car is green.
3.The car is out of gasoline.
4.The car has 4 tires.
Answer:
The correct answer is 3.The car is out of gasoline.
Explanation:
A good testable hypothesis for a car that will not start would be that the car do not contain the fuel to start because any car requires fuel to get started.
So gasoline is a fuel which is also known as petroleum and is widely used as the fuel source for vehicles all over the world. So when any car becomes out of gasoline that car will not start because there will be no energy source to start the engine of the car.
Therefore the car is out of gasoline is a good testable hypothesis for ben who observed that his car will not start.
The largest group that is capable of interbreeding is ______.
Ozone forms near the ground when pollutants from cars are exposed to UV radiation and oxygen. This is an example of a _______.
a.
primary pollutant
b.
secondary pollutant
c.
tertiary pollutant
d.
none of the above
The formation of ozone near the ground due to the reaction of car pollutants with UV radiation and oxygen is an example of a secondary pollutant.
Ozone forms near the ground when pollutants from cars are exposed to UV radiation and oxygen. This is an example of a secondary pollutant. Secondary pollutants like ground-level ozone are not emitted directly into the air but are created by chemical reactions between primary pollutants and other atmospheric components. In the case of ozone, it forms when nitrogen oxides (NOx) and volatile organic compounds (VOCs) emitted by cars, industrial facilities, and other sources react in the presence of sunlight.
what are two types of evidence that evolution has taken place?
How might upward growth of cities be a better choice than outward growth?
a.
Upward growth affects less land area than outward growth.
b.
Upward growth helps moderate pollution problems.
c.
Upward growth has no limitations.
d.
Upward growth has no environmental impact.
Answer:
The answer is A.) Upward growth affects less land area than outward growth.
Explanation:
Which scenario would most likely cause a mass extinction?
A. global temperatures drop several degrees after several massive volcanic eruptions
B. a disease kills off a single species of predator within an ecosystem
C. a massive earthquake strikes North America
D. a wildfire burns a national park
(I think it would be B)
A. global temperatures drop several degrees after several massive volcanic eruptions
Explanation;A mass extinction refers to a widespread and a rapid decrease in the Earth's biodiversity. Mass extinctions may occur due to a number of reasons which includes, asteroid impacts, climate change, massive volcanic eruptions or a combination of all these causes. An example of mass extinction was during the Mesozoic Era, that led to the extinction of dinosaurs, about 65 million years ago.Answer:
A. global temperatures drop several degrees after several massive volcanic eruptions
Explanation:
If any event causes widespread destruction of life on earth that would rapidly decrease the biodiversity, then such an event is called a mass extinction.All the organisms living on the planet require an optimum temperature for their survival, besides the temperature also influences the geological activities such as the weather, rainfall patterns, survival of plants and hence the amount of oxygen and control of pollution.Due to the importance of temperature, the drop in it globally would have a major impact on the living beigns. Since a drop in global temperatures would affect the organisms all over the planet this will lead to mass extinction.Explain how magnetic reversals provide evidence for sea-floor spreading.
which is a disadvantage of using genetic engineering
Answer:
Genetic engineering refers to a process, which permits the alteration of the structure of the genes. It is a deliberate change that takes place via the direct change of the genetic substance of an organism. In the process, DNA is either eliminated or supplemented to generate one or more novel traits, which were not witnessed in that organism before.
Genetic engineering is here to make a change. Some of these modifications are positive, that is, developing healthier foods. However, some of these changes can be negative and unanticipated. Generating a plant more tolerant to drought may also make that plant less tolerant of straightforward sunlight. Animals can be modified to generate more amount of milk, however, they exhibit a reduced lifespan at a similar time, thus, and farmers can suffer greater livestock.
Genetic engineering, though promising, has significant disadvantages. These include unpredictable side effects, potential exacerbation of societal inequality, and the risk of reduced genetic diversity.
Explanation:One major disadvantage of using genetic engineering is the potential risk of unpredicted side effects. Though genetic engineering can provide many benefits such as modified crops or improved disease resistance, manipulating the DNA of an organism can have unforeseen and potentially harmful consequences in the long run. These effects could impair the genetically modified organism, or spread to the surrounding ecosystem, causing ecological imbalance.
Another disadvantage is that genetic engineering could perpetuate inequality. The application of genetic engineering in human beings could lead to a situation where those who can afford it will have access to genetic modifications for improved health, longevity, or even physical or intellectual enhancements. Those who cannot afford such modifications could be left behind, widening already-existing gaps in society
Lastly, genetic engineering runs the risk of reducing genetic diversity. By preferring certain traits and engineering them into organisms, we risk creating a population with similar genetic traits, which might decrease its evolutionary potential and thereby its long-term survival chances.
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What is the meaning of the word "thermal" in this sentence? all boys coming on the school camping trip need to bring a pair of long thermal underwear because it is going to be very cold this weekend.
The word 'thermal' in 'thermal underwear' refers to clothing that retains body heat, providing insulation and keeping the body warm in cold conditions. It is connected to the concept of thermal energy and the transfer of heat.
Explanation:In the sentence, 'All boys coming on the school camping trip need to bring a pair of long thermal underwear because it is going to be very cold this weekend,' the word 'thermal' refers to clothing that is specially designed to retain body heat. Thermal underwear is made from fabrics that provide insulation, which helps to keep the body warm by trapping heat close to the skin. This type of clothing is particularly useful in cold environments where maintaining body heat is essential for comfort and prevention of hypothermia. The term 'thermal' relates to heat and comes from the concept of thermal energy, which is the energy that comes from the kinetic energy of particles within a material.
When we talk about thermal contact, it means that two objects are in such a relationship that they can transfer energy through heat. Similarly, when we say something is 'thermal-ized,' we mean that energy has been transferred into heat, or into the random kinetic energy of particles. In summary, 'thermal' in the given context is used to describe underwear that provides warmth and insulation against cold temperatures.
Climate does not effect the rate in which weathering can occur.
true or false
Answer:
False
Explanation:
Climate plays an essential role in the weathering process. Both precipitation and temperature are essential climatic components.
With appropriate climatic condition, trees and plants grow which leads to biological weathering of rocks.
High temperature and rainfall causes chemical weathering .
Rainfall alone causes weathering by penetrating through the rock fissure.
Not only this, in cold climatic condition weathering also takes place due o cycle of freezing and thawing.
Thus, the statement "Climate does not effect the rate in which weathering can occur" is false.
Which of the following statements best describes the relationship between carrying capacity
and population size?
Carrying capacity increases population size.
Carrying capacity determines maximum population size.
Population size is not affected by carrying capacity.
Population size increases the carrying capacity.
Answer:
Carrying capacity determines maximum population size.
Assume that the mean length of a human pregnancy is 268 days with a standard deviation of 9 days. What percentage of human pregnancies do we expect to last no more than 260 days? ...?
Answer:
The average time of pregnancy is 268 days (38 weeks and two days) from ovulation, with a standard deviation of 10 days or a coefficient of variation of 3.7%. Gestational age is calculated from the first day of the woman's last normal menstrual cycle.
However, only 5% of births occur on the expected date of delivery and at the age of 40 weeks of gestation. 50% of births occur one week before or one week after the expected date. 80% occurs between two weeks before or after
In what year was on the origin of species published?
In what year was On the Origin of Species published?
the answer is D
20 POINTS!!!!!!!!!
A gene with the sequence ATTCATTCA underwent duplication after a few generations. Which sequence represents this gene after the mutation?
A. ATTCATTCA
B. ACTTACTTA
C. ATTCACATTCA
D. ATCCATTCA
E. ATCATTCA
The sequence represents this gene after the mutation is ATTCACATTCA. The correct option is C.
What is mutation?A mutation in the basic biology is an adjustment to the nucleic acid sequence of an organism's, virus's, or any other extrachromosomal DNA. DNA or RNA can be found in the viral genome.
Errors in DNA replication at the time of cell division, exposure to mutagens, or viral infection can all cause mutations.
Somatic mutations which happen in body cells cannot be passed on to offspring, whereas germline mutations which happen in eggs and sperm can.
The new sequence may be: ATTCACATTCA if we assume that the duplication is the consequence of a minor insertion mutation that happened in one of the original copies.
Thus, the correct option is C.
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What will happen to the amount of prairie ecosystem if global warming and increased precipitation occur in that area?
If the temperature rise and the precipitation the vast grasslands called prairies will start to lose their initial appearance and characteristics and because of the higher temperature, humidity and rainfall trees will start to grow as well as bushes. Over time (depending on how quickly the change will appear) the prairie will be replaced by vast rainforests and the prairie ecosystem will be totally replaced by a tropical rainforest ecosystem similar to the southern half of central america.
What factors influence the impact a population has on its environment?
How do elements such as chlorine, bromine, sulfur, and boron get into the ocean?
Answer: Volcano eruption is correct answer.
Explanation:
Volcano eruption occurs when hot materials get thrown out from the interior of earth's surface.
When there is volcanic eruption , it emit so many gases as follows:
Water vapour
Carbon dioxide
Sulfur dioxide
Some elements are two produced by volcano are :
Sulfur
Bromine
Boron
Chlorine
which get into oceans.
Hence, volcano eruption is correct answer.
What is a testable idea about a set of observations or natural phenomenon? Hypothesis, theory, or observation?????
What are proteins for export out of the cell?