Author Question: The ecological efficiency of herbivores and carnivores is estimated by most authorities to be ... (Read 55 times)

mynx · **on:** Aug 7, 2018

The ecological efficiency of herbivores and carnivores is estimated by most authorities to be roughly:
a. 1 percent.
b. 10 percent.
c. 30 percent.
d. 90 percent.

Question 2

Explain how natural regions can change in size or shape over time in response to environmental changes.

tuate · **Reply #1 on:** Aug 7, 2018

Answer to Question 1

B

Answer to Question 2

Humans can modify the aspects of regions by, for example, shifting species abundance or altering habitats. A changing climate can also alter the spatial pattern of key conditions, so that shifts in ecosystem boundaries occur.