Water found in the Atlantic Ocean is...

A - Salt Water
B - Fresh Water

An easy way to calculate the amount of energy available at each level is to what?

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases