Because when exercising your heart pumps more blood to your body and
it has more space to fill so it beats faster
Answer:
Its a virus that any people get and some can die. It is also known as Influenze A. For for info look it up
Explanation:
<u>N</u><u><em>atural selection acts on existing heritable variation</em></u>
Answer: Option C
<u>Explanation:</u>
Natural selection is a process that occurs in nature as a key to evolution. It also goes hand with the survival of the fittest. Nature always selects the best trait to survive or get accustomed to the surrounding by undergoing modifications.
It acts on the genotype of the existing generation and causes variation in the future generation. So the population over generations get to have acquired the variations in their body, structure so that it is adaptable to the surrounding.
Answer:
the coldest of all the biomes.
Answer:
A pairs to T. & G pairs to C
Explanation:
Adenine = Thymine
Guanine = Cytosine