What research finding about the aftermath of the eruptions of Mount Saint Helens most surprised scientists?

Some plant and animal species survived the eruptions.

Succession occurred.

Species from outside the blast area invaded and colonized it.

Ecosystems recovered.

the correct answer is b. possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes.

explanation:

the correct answer is b

i thinking chemical change

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.