Which of the Following Pairs of Reproductive Strategies Is Consistent

question 13

Multiple Choice

Which of the following pairs of reproductive strategies is consistent with energetic trade-off and reproductive success?

• A) Pioneer species of plants produce many very small, highly airborne seeds, whereas large elephants that are very good parents produce many large offspring.
• B) Female rabbits that suffer high predation rates may produce several litters per breeding season, and coconuts produce few fruits, but most survive when they encounter proper growing conditions.
• C) Species that have to broadcast to distant habitats tend to produce seeds with heavy protective seed coats, and animals that are caring parents produce fewer offspring with lower infant mortality.
• D) A free-living insect lays thousands of eggs and provides no parental care, whereas a flowering plant takes good care of its thousands of seeds until they are ready to germinate.
• E) Some mammals will not reproduce when environmental resources are low so they can survive until conditions get better, and plants that produce many small seeds are likely found in stable environments.

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Definitions:

Research Method

Various techniques and strategies used by scientists to gather and analyze data in order to investigate specific questions or hypotheses.

Independent Variables

In research, the variable that is manipulated or changed by the researcher to observe how it affects the dependent variable.

Dependent Variables

In experimental research, the variable that is tested and measured, expected to change when the independent variable is altered.

Experimental Method

A research method involving the manipulation of variables to determine cause and effect relationships.