Which of the following is not one of the factors that play a role in population growth rate?
a. immigration
b. death rate
c. emigration
d. demography

How do you date a sample of rock that you suspect as being one of the earliest on earth

Cedric has a low fever and minor aches. yesterday, he went to the doctor for his booster shot and receive the flu shot. which best explains why he has this reaction?

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.