19) which of the following interactions can correctly be labeled coevolution? a) the tendency of coyotes to respond to human habitat encroachment by including pet dogs and cats in their diets b) a genetic change in a virus that allows it to exploit a new host, which responds to virus-imposed selection by changing its genetically controlled habitat preferences c) a genetic change in foxes that allows them to tolerate human presence (and food) d) the adaptation of cockroaches to human habitation e) the ability of rats to survive in a variety of novel environments

b) a genetic change in a virus that allows it to exploit a new host, which responds to virus-imposed selection by changing its genetically controlled habitat preferences following interactions can correctly be labeled coevolution.

Which of the following phrases best explains how termites and the protozoans that eat within their stomach interact?

Mutualism. Mutualism is a second form of symbiotic association in which two organisms cooperate for the mutual benefit of both. These are the only real instances of symbiosis, according to some experts. For instance, the protozoa that reside in the stomach of the bug have a mutualistic connection with termites.

A species' place and function in its environment—including how it satisfies its needs for food and shelter, stays alive, and reproduces—are referred to as its ecological niche. All of a species' interactions with biotic and abiotic elements of its environment are included in its niche.

Predators avoid the marks because they link them with venomousness.

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