Problem 8 - Biology: The Dynamic Science

Question

Metapopulations are defined as: a. neighboring populations that exchange individuals. b. populations that steadily decrease in size. c. populations that steadily increase in size. d. populations that produce numerous fertile offspring. e. populations that never receive immigrants.

Step-by-Step Solution

Answer

The correct answer is (a). Metapopulations are neighboring populations that exchange individuals.

Step 1: Identify Definition

Identify the definition of a metapopulation. A metapopulation is a group of spatially separated populations of the same species which interact at some level. The interaction often involves individuals moving from one population to another.

Step 2: Relate Options to Definition

Now relate each option to the definition of a metapopulation. a. Neighboring populations that exchange individuals — This sounds close to the definition, as metapopulations often exchange individuals via movement. b. Populations that steadily decrease in size - This may or may not be true for metapopulations. The size fluctuates based on various factors, not necessarily a steady decrease. c. Populations that steadily increase in size - This also may or may not be true for metapopulations. d. Populations that produce numerous fertile offspring - This doesn't apply to all metapopulations. e. Populations that never receive immigrants - This is the opposite of the definition of metapopulations as they often involve movement of individuals.

Step 3: Evaluate Options

Out of all the answer choices, option (a) is the most suitable as it corresponds closely to the definition of a metapopulation. Hence, (a) is the correct answer for this exercise.