To space is a cactus in a Venus fly trap her water intake system they’re similar in function but not instruction what type of structure is this

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

yes, because even though a theory has a  lot of evidence to support it, it is not always true

you're crazy : )

because photosynthesis could not occur (apex)