For the first half of your question, plants do need to eat. In fact, they are autotrophs, which means they are self feeders.
Gastropod
Hope this will help you
<em>Hugs ~L</em>
<span>Hey There Welcome To Brainly ,
Natural springs are not a means of water erosion. Some types of water erosion include rain, streams, rivers, and ocean waves.</span>
Answer:
<u>B</u>. Physiology
Explanation:
The way in which a living organism or bodily part functions.
The branch of biology that deals with the normal functions of living organisms and their parts.