The heart, lungs, blood vessels, and blood
Extinction of losing its species hope this helps you
Answer:
if birth rate become higher than the death rate then the population will increase surely, cuz there are more people who add up to form a population but it's decline rate is lesser.
Answer: The molecule itself is the actual thing present.
while the diagram explains what makes up a molecule or what it looks like structurally
Explanation:
Brain controls nerves
Heart pumps the blood
