Answer:
The answer would be A. Earthworms burrowing in the ground
Answer:
Capillaries. Slower speed enables more time for oxygen, nutrient, and waste transfer to occur at the level of the tissues.
Explanation:
This is a physical property of the circulatory system. Capillaries collectively have the highest cross-sectional area, and therefore have the lowest flow rate (by Poiseuille's Law).
Answer:
The relationship controls the population size of both species.
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Explanation:
A predator-prey relationship tends to keep the populations of both species in balance. This is shown by the graph in Figure below. As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well.
The answer is Natural selection Hope it Helps