Answer: umm idk
Explanation:
You can ask Siri for help
I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
Answer:
covalent bonds within each strand
Explanation:
i think the answer is either A or D but im strongly going to go with D
Answer:
mutations cause most cases of cancer. Some acquired mutations can be caused by things that we are exposed to in our environment, including cigarette smoke, radiation, hormones, and diet. Other mutations have no clear cause, and seem to occur randomly as the cells divide.
