The student show go to the teacher and ask any questions and for help. (and not be shy or embarrassed to do so!)
<em>Community</em>, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
<u><em>So (B) is your answer</em></u>
A chloroplast is most likely to be found in a autotrophic protist
Arteries are the blood vessels that carry blood away from the heart. Veins are the blood vessels that carry blood back to the heart.