One Animal Species (A) Spends 10 Minutes Finding and Obtaining

question 31

Multiple Choice

One animal species (A) spends 10 minutes finding and obtaining one food item that contains 50 calories. The other animal species (B) spends 1 minute finding and obtaining one food item that contains 0.1 calories. Which statement best describes these animals?

• A) Species A is more likely to be an autotroph than species B.
• B) Species B is more likely to be a heterotroph than species A.
• C) Species B is more likely to be a detritivore than species A.
• D) Species B is more likely to be a predator than species A.

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Definitions:

Complex Adaptation

A complex adaptation is a suite of coexpressed traits that together experience selection for a common function. Phenotypes are considered complex when they are influenced by many environmental and genetic factors and when multiple components must be expressed together for the trait to function.

Citrate Exploit

The ability of certain bacteria, specifically strains of E. coli in experimental evolution, to utilize citrate as a carbon source under aerobic conditions where they typically cannot.

Lenski's Experiment

A long-term evolution experiment led by Richard Lenski, observing the genetic changes in Escherichia coli bacteria over thousands of generations.

Oxygen Concentration

The amount of oxygen present in a particular environment, such as air or water, critical for the survival of aerobic organisms.