Answer the following question given this paragraph: Evolution occurs in a population when its allele frequencies change over time. For example, the frequency of the A allele might change from 0.7 to 0.8. If that happens, evolution has occurred. What causes allele frequencies to change? The answer is forces of evolution. Q: What occurs in a population when its allele frequencies change over time? Choices: - variation - generation - extinction - evolution A:
evolution
Answer the following question given this paragraph: Not really. Like all mammals, polar bears maintain a stable internal temperature. They do not need to stay warm by lying in the sun. This allows them to live in cold climates. Q: The ability to maintain a stable internal temperature, despite the climate, is exhibited by members of what animal group? Choices: - fish - parasites - reptiles - mammals A:
mammals
Q: Answer the following question given this paragraph: The partial pressure of each gas in a mixture is proportional to its mole fraction. KEY EQUATIONS Mole fraction. Q: The partial pressure of each gas in a mixture is proportional to its what? Choices: - chemical fraction - lactic fraction - mesh fraction - mole fraction A:
A: mole fraction
Question: Answer the following question given this paragraph: Fats are one type of lipid. Stored fat gives your body energy to use for later. It's like having money in a savings account: it's there in case you need it. Stored fat also cushions and protects internal organs. In addition, it insulates the body. It helps keep you warm in cold weather. Q: What do stored fats provide our body with for later use? Choices: - metals - hydrogen - water - energy A:
Answer: energy
*Question*
Answer the following question given this paragraph: Stuart Chalmers. Cows digest cellulose with the aid of methanogens . CC BY 2.0. Q: Which of the animals digest cellulose with the aid of methanogens? Choices: - pigs - apes - goats - cows A:
**Answer**
cows
(Q).
Answer the following question given this paragraph: Volcanoes at divergent plate boundaries are in the East Pacific Rise. Convergent plate boundaries, where there are trenches, have volcanoes. Hotspot volcanoes are in chains in the middle of the ocean basin. Q: What do convergent plate boundaries with trenches have? Choices: - geysers - caves - earthquakes - volcanoes A:
(A).
volcanoes