Answer:
Please see below
Explanation:
I always tell people that I love to dance, to write and to paint.
The verb keep cannot take an infinitive afterwards so it is better to replace that expression altogether with another one that means the same thing, but that can use an infinitive. The verb love can take either gerunds or infinitives afterwards with only a subtle variation in the meaning.
Answer: It's C
Explanation: because They also do not have a brain, respiratory system, or circulatory system.
The answer to the question is enzyme linked receptor.
I am pretty sure that the answer is B.