OK, richness you do have to depend on any one
Smoking ruins your lungs making it harder to breath and get oxygen
you need oxygen when you exercise so you don't faint
smokers get less so it is harder for them, its like trying to exercise while breathing through a sponge or a straw os
Answer:
A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division.
Explanation:
hope this is what you meant :)
Answer: a compound known as calcium carbonate (CaCO3)
Explanation: Google the question itself
Answer:
Hypothalamus
Explanation:
It maintains the process that leads the activation of wakefulness or alertness of the cerebral cortex
