Their digestive systems cannot digest solid foods until that age
Answer:
A
Explanation:
Cardiovascular diseases involves the heart.
Any of the above options with regards to blood (etc, white blood cells, red blood cells) are related to circulatory system, not affecting the function of the heart.
Stem cells performing apoptosis to remove old cells is a myth. Stem cells can only differentiate to form cells of the same lineage, not causing other cells to undergo apoptosis. The only external factor that can cause cells to undergo apoptosis is a type lymphocyte in the immune system
Answer:
D=Human
C=Chimpanzee
B=Mouse
A=Snake
Explanation:
Snakes do not have fingers/hands therefore they don't have anything in common with the other organisms besides from being alive.
Next is the mouse because they have hands but have a tail and are from a different species/group than humans and chimpanzees.
Next is chimpanzees because they are in the same class as humans but humans are more advanced.
The purines-adenine and guanine
