the awnser probably suports:
A) The physiologies of humans and some animals are very similar, so the reactions of these creatures to certain medications are the most reliable guide to the possible reactions of human patients.
Answer:
one is formal and one aint
Explanation:
The compound subject is "Young Juan and his father." Both Jaun and his father are the subjects of the sentence, but because there are two of them it means there is a compound subject.
Well, I old man will feel happy if he has achamplished everything he ever wanted in life. Hope this helps :p
