Answer: A) changing the rate at which greenhouse gases are released from Earth's surface into the environment.
Explanation: Without vegetation (For example trees) the rate at which greenhouse gases, like carbon dioxide, are released from Earth's surface into the environment would skyrocket. Vegetation uses carbon dioxide in photosynthesis and converts it into oxygen, helping to absorb some of the greenhouse gases that would otherwise accumulate in our atmosphere. It essentially reduces the rate at which greenhouse gases are released into our atmosphere.
Answer:
Some animals travel relatively short distances to find food or more favorable living or breeding conditions. Most animals migrate to breed. The Atlantic Salmon begins life in a river and migrates downstream to the ocean.
Answer:
There is risk of vitamin B12 deficiencies in vegetarians and vegans.
Explanation:
Vitamin B12 is found naturally only in animal products. A lack of vitamin B12 can lead to anemia and blindness.
Answer:
c. Individuals experience differential success in their ability to survive or reproduce due to differences in certain traits.
Explanation:
Natural selection works on a population when genetic variations are present in its members. Some genetic traits make the organisms better adapted to the prevailing surroundings. These individuals survive more and reproduce more successfully due to the presence of specific genetic traits. Over the generations, the proportion of the beneficial genetic trait increases due to the increased reproductive success of these individuals. This is called natural selection. On the other hand, the individuals that lack these traits survive and reproduce less.
