Sorry, but I don't want to do your essay. I wish you luck tho :>
Answer:
Answer is A signal is sent down an exon within a nerve cell.
Explanation:
natural selection is an species wich are adapted to their environment
Answer:
C.
Explanation:
Strictly speaking, the only type of reproduction in Paramecium is asexual binary fission in which a fully grown organism divides into two daughter cells. ... Autogamy (self-fertilization) is a similar process that occurs in one organism.
The area encircling the Pacific Ocean is called<span> the "</span>Ring of Fire<span>," because its edges mark a circle of high volcanic and seismic activity (earthquakes). Most of the active volcanoes on Earth are located on this circumference.</span>