You are studying with a classmate who asks you about the concept of a replacement rate. She wants to know what happens to a population if the replacement rate is reached? She also assumes the average human replacement rate is 2.0. What would you tell her?

A. When replacement rate is reached, the population is in equilibrium. The replacement rate is equal to 2.0 to replace both mother and father.
B. When replacement rate is reached, the population declines. The replacement rate is greater than 2.0 to make up for declining birth rates.
C. When replacement rate is reached, the population is in equilibrium. The replacement rate is greater than 2.0 because some individuals die before they reproduce.
D. When replacement rate is reached, the population declines. The replacement rate is lower than 2.0 to make up for increasing birth rates.
E. When replacement rate is reached, the population increases. The replacement rate is lower than 2.0 to make up for increasing birth rates.


Answer: C

Biology & Microbiology

You might also like to view...

In general, prokaryotic genome size is correlated to lifestyle. Which type of prokaryote typically has the smallest genome?

A) parasite B) endosymbiont C) autotroph D) free-living heterotroph

Biology & Microbiology

_____ are inorganic substances with metabolic roles that no other substance can fulfill

a. Fats c. Vitamins b. Minerals d. Simple sugars

Biology & Microbiology

Blood that flows through capillaries in the small intestine flows next through vessels in the _____

a. stomach c. pancreas b. heart d. liver

Biology & Microbiology

How can glycolysis produce ATP in the absence of oxygen and ATP synthase?

A. by exciting electrons using photons of light B. All of the answer choices are correct. C. by ATPase linked to the mitochondrial electron transport chain D. by substrate-level phosphorylation E. by oxidative phosphorylation

Biology & Microbiology