First: Scarring
Scarring has nothing to do with defense
Second: False
Its B and T cells (lymphocytes)
Third: B cells
B cells produce antibodies
Answer:
Self-abuse is negative and often dangerous behavior done to yourself.
Answer:
A: The sperm penetrates the egg membrane,and they fuse together.
Explanation:
Hopefully this helps!
Probably the last one. It's the least realistic way to make your body healthy. If you are going to do exercise and make yourself healthy, friends would be helpful in that process and exercising is definitely a good way to be healthy.
It could be to avoid injuries. One reason why there are several rules in
exercising is to ensure that a person will not get injured during a
workout. Injuries can occur when one is
either handling too much weight, doing the exercise wrong, not using proper
equipment or does not have a partner or trainer assisting him.
