The picture below shows the relationship between organisms that live in a valley. rats eaten by snakes
snakes eaten by eagles
Suppose the temperature of this ecosystem is unusually warm one year and the number of snakes greatly increases. What will most likely happen?
A.
The number of rats will increase.
B.
The number of rats will decrease.
C.
The number of eagles will stay the same.
D.
The number of eagles will decrease.

Explain why the plants cortex would serve as the best food source for animals

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

What kinds of molecules can pass through the cell membrane without any problem?