Answer:
diffusion
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ).
Explanation:
The answer in here is B. Dalton was incorrect saying that<span> atoms were the indivisible components of matter. Indeed that the atom could not be broken down. </span>
The answer would be B) Sponges, corals, worms, insects, spiders and crabs are all sub-groups of the invertebrate.
A because it is used to treat known diseases.