Ecology Of Individual Organisms 2

Question 1

Which term describes the range of environmental conditions under which an individual organism can survive and reproduce?

Accepted Answer

Tolerance range

Answer

The tolerance range defines the minimum and maximum limits of an abiotic factor within which an organism can survive.

Question 2

An organism that maintains a relatively constant internal body temperature regardless of the external environment is called a:

Accepted Answer

Endotherm

Answer

Endotherms generate metabolic heat to maintain stable body temperature, unlike ectotherms which rely on external heat sources.

Question 3

What is osmoregulation in the context of individual organism ecology?

Accepted Answer

Control of internal water and solute balance

Answer

Osmoregulation is the process by which organisms control the concentration of solutes and water in their bodies to maintain homeostasis.

Question 4

Which physiological response allows a desert kangaroo rat to survive without drinking liquid water?

Accepted Answer

Production of metabolic water from food oxidation

Answer

Kangaroo rats obtain water by oxidizing carbohydrates, fats, and proteins in their food, producing metabolic water as a byproduct.

Question 5

The zona pellucida in mammalian eggs and the acrosome reaction in sperm are examples of adaptations operating at which level of ecology?

Accepted Answer

Individual organism

Answer

Reproductive biochemical mechanisms like fertilization barriers operate at the level of individual organisms and their gametes.

Ecology Practice Test