Answer:
predator is blue, prey is red
Explanation:
when the amount of predators increase, the blue line rises, the red line lowers. when there is more predators there is going to be a less amount of prey.
Answer:
D
Explanation:
A robin building a nest is not learned or taught like the others. It is just instinctive for robins to build nests.
C precipitation because if you look at the diagram, you will see it is raining on the mountains.
Because water goes through your systems and makes you survive. They can live with water forever.
