Ecosystem .. Just took the test !
Dogs, cats, ferrets, seals, elephants, mustelids and bears own the "Zonary" placentae.
Answer:
Cancer disease occurs when the abnormalities occurs during cell division of stem cells. Stem cells are those cells which are produced in the body and used by the body when the cells are older or get damaged. When the division of these stem cells are uncontrollable, cancer occurs which spread to the surrounding cells. When a large group of cancer cells grow in size, it turns into tumor.
Answer:
find the right answer
Explanation:
if the control group is nit included in the experiment it would be hard to get the right solution(answer).
I think hopefully this helps.
Th answer is D its the best answer that fits the question .
