Answer: <u>Aphotic</u><u> </u><u>zone</u>
less than 1% of sunlight penetrates the depths of the waters in the Aphotic zone
Ultraviolet sun rays it damages the cells and can cause skin cancer.
I believe it would be a primary succession.. (I may be wrong)
The correct answer would be carcinogens. Carcinogens can disrupt cellular homeostasis and can even lead to uncontrolled cell division and form of cancers. These are substances that damages the cellular metabolic processes in the body. Carcinogens are found everywhere; it may be in our food, radiation or even some of the ingredients of the things we use daily.
Very simple. At rest, you have a number of bpm. After exercise, the heart can't return abruptly to the rest speed, and it keeps a faster rate for a while.