Which of the following events would most unpredictably affect an ecosystem?
A. the removal of one old tree
B. a mutation in a native bacteria
C. the annual birth of a new generation of deer
D. a rainstorm that causes minor flooding.

B

Explanation:

It would be a mutation in a native bacteria.

b. a mutation in a native bacteria

Explanation:

got it right on study island :)

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells

but there is no

i guess you forgot putting it.