<span> Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.</span>
Answer:
To maintain homeostasis, the control center responds to the changes in the stimulus received from the sensor by sending signals to effectors
I want 10 point lol the answer is 40
Which cells in the seminiferous tubules regularly undergo mitosis?
Spermatogonia
