Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?
A. There is less energy available in the producers because their tissues are less dense
than those at higher trophic levels.
B. There is more energy available in the second trophic level because less energy is
needed for hunting compared to the higher trophic levels.
C. There is more available energy in the birds of prey because they have greater
muscle mass for storing energy than organisms in lower trophic levels have.
D. There is less available energy in the fourth trophic level because of the loss of
energy through metabolism in each of the lower trophic levels.

Atree root breaking a rock into smaller fragments is an example of both and mechanical weathering. when rocks are exposed to heat, they which can contribute to thermal stress. when harmful gases, such as sulfur dioxide and nitrogen oxide, react with water in the atmosphere, they can produce the agent of erosion involved in stream erosion is when the ground is so saturated that it can't absorb rainfall or when rain falls so quickly that the ground can't absorb the water, forms. a/an is a huge, heavy, moving body of ice that picks up rocks and sand and erodes the ground beneath it as these materials scrape across it. hot arid climates are prone to erosion by rows of trees and shrubs planted to protect fields from wind erosion are known as