1,203,375 different species of animals on earth and 1,589,361 different species of plants on earth (so your answer is more)
Fetus can survive an extra copy of a chromosome, but being hemizygous is <span>usually fatal</span>
The answer to this is false, a vector is a disease usually spread from a bite.
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
You're welcome!
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
