Darwin calculated that if reproduction was not limited, a single pair of elephants could leave ____

descendants after 750 years.



a. 750
b. 15,000
c. 150,000
d. 19 million
e. 190 million


D

Biology & Microbiology

You might also like to view...

Ocean pollution includes all except

a. toxins. b. heavy metals. c. dissolved oxygen. d. oil. e. PCBs.

Biology & Microbiology

What protects many types of seaweed from desiccation?

a. Cuticle b. Stipe c. Mucilage d. Thallus

Biology & Microbiology

The secretion of which hormone decreases when calcium blood levels increase?

a. calcitonin b. parathyroid hormone c. thyroid hormone d. epinephrine e. norepinephrine

Biology & Microbiology

Cell membranes of living systems are commonly made of a____________________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology