Answer: B, D, and E.
Explanation:
Birds and reptiles are most closely related, Frogs are more closely related to birds than fish and fish are the most primitive are three statements that are correct because a cladogram is considering a diagram that is used in cladistics.
This type of diagram is there to show relations between organisms and in this case, it is true that birds and reptiles are related most closely, frogs are more closely related to birds and the fish( C is incorrect) is the most primitive( that is why answer A. is not correct).
I believe u mean PEER pressure Yes it has an affect on the brain, it manipulates/pushes it to do something even if it doesn't want to. it can affect the body by harming urself from peer pressure.
if u DO mean pure pressure, as in pain, yes it has a physical affect and idk if it affects the brain.
I HOPE I HELP (ノ・ω・)ノ