Platyhelminthes have flame cells. what is their significance?
a they in respiration.
b they in excretion.
c they in protection.

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

Anurse is caring for a client who is learning how to take care of a newly created colostomy. when observing a return demonstration of the colostomy irrigation, the nurse evaluates that more teaching is required when the client carries out what procedure?