<span>The whole brain is not gray matter, just the surface of it and parts of the interior, and there is other gray matter in nerve tissue along the spinal column. </span>
Answer:Species, in biology, classification comprising related organisms that share common characteristics and are capable of interbreeding. This biological species concept is widely used in biology and related fields of study.
It was not until the year of 1952!
Answer:B
Explanation:
WHEN WE RESPIRE THE CO2 EXCHANGES TO 02 IN THE ALEVOLI
B. when the immune system attacks the body's own cells
