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Which environmental factor could lead to a decrease in genetic variation in a population of tuna?
an increase in food availability
an increase in pollution
o a decrease in tuna fishing
a decrease in tuna predators
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An increase in pollution.

Explanation:

Say we have 100 species of tuna in a lake. If all 100 species are given access to a food surplus, none are going to have the need to compete for survival, which encourages diversity in a population. Similarly, A decrease in predators and a decrease in fishing (which could be considered a predator) will not provide challenges for natural selection to occur in this population. However, if an increase of pollution occurs, whichever species of tuna is most adept at surviving and/or thriving in this environment will survive, and whichever species cannot survive in this environment will either change location or simply die out.

earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

explanation:

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.