I think its an adaptation
adaptation
An organism highly adapted to its climate will continue to evolve over millenia as its environment is constantly changing
Neither since it is not caused by any organism but it is your over-response to something in the environment.
Any organism that can't adapt to changes that occur over time in its' environment will become extinct.
An organism is actually a living thing, and a habitat is the environment for an organism. But, if one organism lives on another, the organism is its habitat.
it is the continental (c)
Fitness
In bio, adaptation usually refers to an evolutionary change an organism has made to better suit its environment. This change is a process and usually takes thousands of years. Evolutionary adaptation is not to be confused with acclimation, which is when an organism simply gets used to its environment during its lifetime and makes no evolutionary changes.
Evolution is when an organism adapts over time in a behavioural, mental, physical etc. way to better suit it's environment.
It might be able to show what kind of organism lived in the past, how the organisms and the environment have changed over time.
Rivers are made of water. Over time water erodes soil. this can change a river. Also if something falls into the river or people affect the river it can change.
the feature that help a penguin is the pink gland over their eye that when it gets too hot the glands become more pink that help the penguin cool of by the blood moving throughout the body