"The heart takes in oxygen from the environment and delivers it to cells" is the statement among the choices given that <span> accurately describes the role of your heart in delivering oxygen to your body cells. The correct option among all the options that are given in the question is the third option or option "C". I hope it helps you.</span>
Answer:
legs and wings may have evolved from flippers
Viruses cannot replicate by themselves, because they lack a lot of the cellular machinery to do so. This is why they have to invade a cell, and use the cells cellular machinery to help the virus replicate.
This is the reason they are not considered living.
Answer:
Lung cancer because once you smoke, the toxic chemicals build up in each lung sack causing it to build up over a period of time and can have breathing difficulties and can lead up to cancer