Answer: A. mechanisms for which activity is primarily triggered and shaped by the incoming stimulus information.
Explanation:
Bottom-up mechanism is a process in which a body perceives an incoming stimulus and certain physiological changes occurs in the body working in the direction of upwards that is the signals are transferred to the brain so that the brain could interpret the stimulus. This mechanism suggests the fact that our perceptual experience is based upon the sensory stimuli.
In a living thing, both tissue and organs are very important to maintaining homeostasis.
Answer:
natural selection is natural, selective breeding is not. Natural selection is when the best genes are passed down. Selective is when the best of an animal group are forced to mate
Explanation:
The answer, is bryophytes are also called pioneer plants.
i hope this helped you out :)
I might be incorrect, but from what I remember it should be particle size
