Which of the following is released during cellular respiration?
The benefits of space exploration are purely scientific and do not lend themselves to military or medical applications.
True
False
Cardiovascular disease can be attributed to this uncontrollable risk factor:
atherosclerosis
high cholesterol
heredity
low blood pressure
...?
Answer:
The correct answer is the option: heredity
Explanation:
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Let's solve this!
Hereditary diseases are uncontrollable. Since they depend solely on the genes we have, inherited from our parents.
This is a very very important factor is cardiovascular disease, more specifically.
We conclude that the correct answer is the option: heredity
The Earth consists of a variety of different organisms. Despite their diversity, however, some similarities on the structural and metabolic levels may be seen. These similarities can be attributed to
The right answer is it can be attributed to similarities among organisms in proteins and nucleic acids (especially in their coding regions in their genome).
Genomes consist of coding regions, which correspond to genes, and non-coding regions. The coding part is the one that gives the proteins that are involved in the structure and metabolism of the individuals. if two individuals have a similar protein-giving genome, then they will probably have the same structure and metabolism.
An explanation for certain behaviors or occurrences which have happened or will happen that is based on many tests and examples is a
scientific theory.
science experiment.
research question.
variable.
Answer:
Scientifc therory is the correct answer
Explanation:
Plant growth caused by external stimulus is _____.
A. tropism
B. homeostasis
C. gibberllin
D. hormone
Answer: The correct answer for the blank is-
A. tropism.
Tropism is a biological process that indicates growth of a plant in a particular direction in response to any external stimuli (any change in the environment that induces a specific response in a biological system).
For example - Phototropism in plants is a type of tropism process in which plants tend to grow towards the direction of sunlight.
Thus, option A) is the right answer.
During the winter time, the total number of hours of sunlight decreases. What effect would this have on the process of photosynthesis?
A) The rate of photosynthesis would decrease and less glucose would be produced.
B) The rate of photosynthesis would increase and more glucose would be produced.
C) The amount of available sunlight does not influence the rate of photosynthesis.
D) It would have no effect on plants having needles instead of leaves, that stay green all year long.
Answer: A) The rate of photosynthesis would decrease and less glucose would be produced.
Explanation: Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.
Photosynthesis is the process used by plants, algae and certain bacteria to convert energy from sunlight and turn it into chemical energy in the form of glucose which is used a s a source of energy by many organisms.
[tex]6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2[/tex]
Thus decreasing the amount of sunlight would decrease the rate of photosynthesis and less glucose will be produced.
the formation of frost on a cold window panel is an example of which of the following...
A. Sublimation
B. Condensation
C. Deposition
D. Transpiration
Dr. Digger, a paleontologist, finds a fossil that he describes in his journal.
The creature was approximately 1 meter long, with its backbone fused into a large shell covering the body cavity. It had a beaklike mouth, without teeth, and all four limbs were in the form of flippers.
Based on anatomical similarities, to which modern animal is Dr. Digger’s creature most closely related?
zebra
bony fish
sea turtle
snake
which is predicted by the theory of special creation?
a. species change by adaptation to their environment
B. fossils should show differences in species as they change over time
C. vestigial organs should be similar to functional forms in ancestral species
d. there should be no nonfunctional structures in organisms perfectly adapted to their environment ...?
The theory of special creation predicts that there should be no nonfunctional structures in perfectly adapted organisms, contrasting with evolutionary theory which supports adaptation and change over time.
The theory of special creation predicts that there should be no nonfunctional structures in organisms perfectly adapted to their environment. This viewpoint is based on the belief that each species was created individually and perfectly suited to its environment from the outset, making the idea of vestigial organs or structures unnecessary according to this theory. In contrast, evolutionary theory, supported by evidence such as the presence of vestigial structures and fossils indicating gradual changes in species over time, suggests that organisms do change and adapt through natural selection and shared ancestry.
you carry a 20.N bag of dog food up a 6.0 m flight of stairs.how much work was done
Answer:
[tex]120[/tex] N-m
Explanation:
Work done is equal to the product of mass of an object and the distance by which it is displaced.
Hence, mathematically the relationship between work done (W), Mass of an object (M) and its displacement (D) is equal to
[tex]W = M * D[/tex]
Substituting the given values in above equation, we get -
[tex]W = 20 * 6\\W = 120[/tex] N-m
Hence, work of [tex]120[/tex] N-m is done here
Which choice best describes the end product meiosis?
A. produces 2 identical daughter cells
B. produces 4 identical daughter cells
C. produces 2 genetically different daughter cells
D. produces 4 genetically different daughter cells
1. Which of the following is not a
contributing factor to the uneven
warming of Earth’s surface?
Select one:
a. Different surfaces warm at different
rates.
b. The Sun is farther from Earth during
the winter.
c. The Sun’s ray hit the surface at
different angles
d. Different surfaces retain energy
differently.
The option that does not contribute to Earth's uneven warming is 'The Sun is farther from Earth during the winter.' The other options relate to how sunlight interacts with Earth's surface and atmosphere, which are true contributors to the uneven warming of the Earth.
Explanation:The student asks which factor does not contribute to the uneven warming of Earth's surface. The incorrect option among those provided is b. The Sun is farther from Earth during the winter. While it's true that Earth's orbit is elliptical and the distance from the Sun changes slightly over the year, this variation is not significant enough to cause the seasons or affect the uneven warming of the Earth's surface. Instead, the uneven warming is mainly due to the other three factors: different surfaces warming at different rates, the Sun's rays hitting the surface at different angles, and different surfaces retaining energy differently. The way the Sun's rays strike Earth varies depending on factors like the angle and duration of sunlight, which are influenced by Earth's tilt and position in its orbit around the Sun. During summer, for example, the Sun's rays hit the Earth more directly, causing more intense and concentrated warming.
Which of the test tubes shown below were most likely produced by a sprig of Elodea and a snail in the dark after 24 hours of incubation?
Answer:
The correct answer is - test tube 4.
Explanation:
The sprig of Elodea produces carbon dioxide and oxygen after the incubation of 24 hours whereas the snail releases the oxygen in the test tube during the incubation period. The presence of both gases gives a yellowish color to the test tube solution.
Incubation is the process in which organisms or anything at a precise environment and temperature so it can develop properly.
Thus, the correct answer is- test tube 4.
A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
herbivore, decomposer
producer, heterotroph
carnivore, consumer
autotroph, herbivore
Answer: Carnivore, consumer
Explanation:
The carnivores are the animals that feed on the smaller organism for their energy. They can be as small as a bird and as bid as a lion.
Consumers are the organism that feed on the producers for their energy needs. Here, the bird is omnivores that feed on insect as well as on plants for their energy needs.
A bird feeding on insect is an example of consumer, carnivore.
In which of the following ways is DNA replication different from DNA transcription? A) New cells can only be created after transcription has taken place. B) Replication results in mRNA strands while transcription creates new DNA. C) Transcription happens outside the nucleus and replication happens inside the nucleus. D) Thymine is used in replication while uracil is used in transcription.
Answer: Option D
Explanation:
At the time of DNA replication the nitrogenous bases used is thymine because DNA is the end product of replication.
Whereas, in case of translation the end product is mRNA in which the nitrogenous base used is uracil.
Both of the process combinely helps in cell division and formation of new cells.The proliferation of cell is very crucial and important step inside the cell.
Can you put this in order from smallest to largest? the list is: chromosome, gene, organ system, tissue, organism, organ, nucleus, nucleotide base pair, cell.
Why does the enzyme trypsin get deactivated when introduced in the gastric juice of the stomach?
The taxonomic reference for raccoons is Eukarya, Animalia, Chordata, Mammalia, Carnivora, Procyonidae, Procyon, lotor.
Raccoons belong to which family?
A.
Procyonidae
B.
Animalia
C.
Mammalia
D.
Carnivora
Raccoons belong to the family Procyonidae. This family is part of a hierarchical taxonomic classification system used in biology to organize and understand relationships between organisms.
Explanation:The raccoons belong to the family Procyonidae. This classification is part of the taxonomic hierarchy, which categorizes living organisms in a ranked structure from broad to specific. The hierarchy includes the domain Eukarya, followed by the kingdom Animalia, the phylum Chordata, class Mammalia, and then progresses to the order Carnivora. Within this order, we find the family Procyonidae, which includes the genus Procyon, and finally the species lotor, signifying the common raccoon with the scientific name Procyon lotor. Taxonomic classification is important in biology as it helps scientists organize and understand the relationships between different organisms. Each level of classification from kingdom down to species is referred to as a taxon.
Fish populations and other aquatic resources are likely to be affected by changes in what aquatic factors? a. water temperatures b. disease c. water quality d. all of the above Fish populations and other aquatic resources are likely to be affected by changes in what aquatic factors: water temperatures
The correct answer is - d. all of the above.
The fish populations and other aquatic resources can be affected by multiple factors. The water temperature is a defining factor, if it is colder than lots of marine life will dye out and be replaced with other species, and vice versa, if its too warm lots of marine life adapted to colder conditions will die out. Diseases are always an impact factor in any environment, so if a dangerous, fatal, disease appears, it can demolish the populations of the aquatic organisms. The water quality is becoming an ever-growing concern, and that is because of the human activity. If the water gets polluted, or eutrophicized, the marine life will very quickly die out and leave empty waters behind it.
Which materials are included in the hydrosphere that are not in liquid form?
A.
rainforests and lakes
B.
glaciers and polar ice caps
C.
rocks and minerals
D.
lakes and rivers
The right answer is B. glaciers and polar ice caps.
The hydrosphere is the part of the globe occupied by water (or ice). it includes oceans, rivers, lakes, glaciers, polar ice caps...
Glaciers and polar ice caps are the only solid elements in the hydrosphere (rocks and minerals are not part of the hydrosphere but the lithosphere).
The hydrosphere includes materials that are not in liquid form, such as glaciers and polar ice caps, which are the largest stores of fresh water, greater than groundwater, lakes, and streams.
Explanation:The materials included in the hydrosphere that are not in liquid form are glaciers and polar ice caps. These represent significant stores of freshwater and are part of the Earth's hydrosphere, even though they are in solid form. The largest store of fresh water in the hydrosphere is not the ocean, but rather glaciers and ice caps, followed by groundwater. The majority of Earth's freshwater is locked up in these reservoirs, vastly more than what is found in lakes and streams.
Bright-field microscopes are used for most microscopic work. True or false.
Which if the following is NOT a product of the Krebs Cycle?
A) water
B) carbon dioxide
C) ATP or GTP
D) FADH2
The following is NOT a product of the Krebs Cycle is FADH2. The correct option is D.
What is the Krebs Cycle?The Krebs cycle is also called the tricarboxylic acid and citric acid cycle. This cycle works under aerobic conditions. This produces energy in bodies. Krebs cycle converts acetyl CoA molecules into NADH.
Pyruvic acid and acetyl-CoA combine to create glucose in this mechanism. The Krebs cycle, commonly known as the aerobic stage because it takes place in the presence of oxygen, is the second step of cellular respiration.
Given that anaerobic organisms cannot survive in the presence of oxygen, we might infer from this that not all living things participate in the Krebs cycle. NADH is not produced in this cycle.
Therefore, the correct option is D. FADH2.
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The climate and features of the earth are always changing. some populations have been able to survive by adapting to the changes. which characteristic of a population is most vital for allowing adaptation?
Answer:
genetic variation
Explanation:
trust in me
Which step of mitosis involves the spindle fibers pulling the chromosomes to opposite ends of the cell?
Answer:
D: Telophase
Explanation:
What is the TECTONIC CYCLE? Briefly summarize it.
energy for use is stored in the form of
A biologist is writing a report about a group of rattlesnakes that all live in the state of Florida. All rattlesnakes in this group can breed with one another and produce offspring that can reproduce together. The report includes statistics about the number of these rattlesnakes, their breeding rate, and the ranges of their sizes and other traits. In this report, the biologist is describing?
A.a community in Florida.
B.a biome in Florida.
C.a population in Florida.
D.an organism in Florida.
Answer: C. a population in Florida
As a biologists is writing about a report on group of rattlesnakes that all lived in the state of Florida. It is mentioning about the species of a particular snake but a group of organisms considering a group or organisms which breed with one another and produce offsprings that can reproduce together. All these features can be defined under a single term called as population. Members of species that are be breed with each other and can produce viable fertile offsprings is called as population. Therefore, in this report biologist is describing about population in Florida.
Answer:
The correct answer is option C, a population in Florida
Explanation:
The population description is an efficient language is termed as demographics. The descriptive components of the demographics are –
a) Population Size – It gives the number of individuals within a population
b) Population Density – It defines the size of a population with respect to the space occupied by it
c) Age Structure of the Population – It categorizes different individuals in a population group to different age sections
d) Fecundity – It describes about an individual that is able to produce during a given period of time
e) Morality – It gives the death and birth rate of a population
f) Sex ratio
How do the mitochondria and vacuole work together?
Mitochondria and vacuoles perform distinct roles within a cell, with the mitochondria providing energy through cellular respiration, and the vacuoles storing water, nutrients, and waste and maintaining the shape of the cell. The energy provided by the mitochondria is critical for the function of the vacuoles, and indeed all other parts of the cell.
Explanation:The mitochondria and vacuole in a cell carry out distinct but interconnected roles. The mitochondria, often called the 'powerhouse of the cell', is where cellular respiration occurs. This process converts energy stored in nutrient molecules such as glucose into adenosine triphosphate (ATP), a form of energy that the cell can use.
On the other hand, vacuoles serve as a storage and transport system. They not only store water, nutrients, and waste products, but also help in maintaining the shape of the cell. In plants, enzymes within vacuoles can break down macromolecules. Some vacuoles, known as contractile vacuoles, can excrete excess water and waste from the cell through a process called endocytosis, where the vacuoles merge with the cell membrane and expel waste into the environment.
While their functions may seem separate, the energy provided by the mitochondria is critical for the function of the vacuoles, and indeed all other parts of the cell. Thus, the mitochondria and vacuoles work together to ensure the cell can function and survive.
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Paisley wants to prepare a graph of the rate of growth of a lentil seedling. Which factors would be the independent and dependent variables? The height of the lentil seedling would be an independent variable and the length of the leaves the dependent variable. The height of the lentil seedling would be an independent variable and the time passed would be the dependent variable. The time passed would be an independent variable and the height of the lentil seedling would be the dependent variable. NextReset
Answer:
The time passed would be an independent variable and the height of the lentil seedling would be the dependent variable.
Explanation:
The actual variable a researcher sets out to measure during the course of a research is the dependent variable. It is measured to determine how its response to variation in the independent variable.
The independent variable is the one that is usually manipulated or changed during the course of a research or experiment. The effect it creates is determined by measuring the dependent variable.
Hence, in a graph of growth rate of a plant, a growth measuring factor (such as height, number of leaves, branching, etc.) serves as the dependent variable while time will serve as the independent variable.
Therefore, in the case of Paisely, the height of the lentil seedling would be a dependent variable and the time passed would be the independent variable.