Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population? a.
Every colony has a major impact on native flora and fauna.
b.
Because the last colony found is the one housing the invasion's queen.
c.
Even a single remaining ant can rebuild the invasive species’ population
d.
Fire ants spread by winged members and by hitching rides so a single colony can cause infestation.

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

What factors contribute to the effect an environmental toxin has on the human body?