If Two Species Have Incompatible Mating Structures, Then Which Reproductive

question 26

Multiple Choice

If two species have incompatible mating structures, then which reproductive isolation mechanism prevents them from mating?

• A) Sexual isolation
• B) Gametic isolation
• C) Temporal isolation
• D) Behavioral isolation
• E) Mechanical isolation

---

Definitions:

Scarcity

The fundamental economic problem of having seemingly unlimited human wants in a world of limited resources.

Production Possibilities Frontiers

is a curve depicting all maximum output possibilities for two or more goods given a set of inputs (resources, labor, etc.), assuming all inputs are used efficiently.

Great Depression

A severe worldwide economic downturn that took place during the 1930s, starting in the United States, leading to high unemployment and financial instability.

Full Employment

A situation in which all available labor resources are being used in the most economically efficient way, typically characterized by the absence of involuntary unemployment.