Which scientist developed a theory that describes how light interacts with gravity?
a. albert einstein
b. edwin hubble
c. georges lemaitre
d. james clerk maxwell

Depending on the organism the number of in a cell may change

Match the types of competition to their descriptions

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