A change in the environment outside the organism that causes a change in the organism * 5 points
stimuls
internal stimulus
external stimulus
stable

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time

true

explanation:

answer; (a) medicalized;