In a healthy ecosystem what is happening?

a. all the components work together

b. the animals outcompete each other

c. the animals avoid each other

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

Why does the skin of your finger shrink when you wash clothes for a long time?

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring