Answer:
I'm not sure if you meant Hematopoietic stem cells but if so, they are found in the peripheral blood and the bone marrow.
Answer:
Biology gives knowledge about the useful and harmful plant. So, the farmer can get better pest free crops. Biology provides the knowledge to maintain good health by following a proper food, exercises, good habits etc.
The size of a population refers to the “Amount”
Answer:
the protons become concentrated in the thylakoid space