The answer is C.<span>The shell protects the crab from predators</span>
sodium ion can't pass through plasma membrane without the help of protein channel
Answer:
We can see some of the most important patterns Darwin noticed in distribution of organisms by looking at his observations of the Galápagos Islands off the coast of Ecuador. Darwin found that nearby islands in the Galápagos had similar but nonidentical species of finches living on them.
