What are sensation and perception? What do we mean by bottom-up processing and top-down processing? (Write 800 words please)

not sure but try c two haploid cells

explanation:

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.

true                                                                                                       true true true true true true

answer///alimentary canal/gastrointestinal tract.digestive (gi);