12. they weight about 45 pounds or more
13 am not sure sorry
Answer:
it is considered a population because there are different types of trees there.
Explanation:
<span>The basic structural and functional unit of
the nervous system is the nerve cell or NEURON. It is important to come to
grips with the neuron and the terminology relating to its parts now.</span>
D.) none of the above is human induced cause of extinction