I believe the answer to this question is D, I am not sure though.
Answer:
The correct answer is A. It has a diploid number of chromosomes.
Answer:The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions: Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).
Explanation:i hope that helped
Answer: A
Explanation: Vaccines create memory cells with a weak version of the pathogen, so when they meet that pathogen again the body can respond more quickly and more efficiently since they have already been exposed to the pathogen.
Isotonic because water is going both in and out of the cel
