Beyond durability, cockroaches are built to play defense. They have an exoskeleton to protect their soft bodies, and will hide whenever they're in the process of molting their exoskeleton. The exoskeleton is not only rigid but flexible to allow the roach to crawl into tiny crevices. Their legs are built for running
Answer:
Habituation.
Explanation:
Habituation may be defined as a type of non associative learning. This type of learning reduces the innate response of an individual towards the repeated or prolonged time of the stimulation.
The frog first respond to the tree branches swaying in the wind. After some time the frog does not respond because of the prolonged or repeated stimulus of the environment. Hence, frog shows the lack of response due to habituation.
A population of squirrels is preyed on by small hawks at maturity. the smaller adult squirrels can escape into burrows. the larger adult squirrels can fight off the hawks. after several generations, the squirrels in the area tend to be very small or very large. this is an example of disruptive selection. In disruptive selection, the extreme traits i.e., very small and very large sizes are favoured over intermediate trait i.e., average size.
A, because its still water, just in a different state.
