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
Two individual flatworms must transfer sperm to each other
If you have the genotype Ww, where W represents purple flowers and w represents white flowers, which one is the dominant trait?
Answer:
I think purple flowers.
<span>vestigial structures because they are hard </span>
