A question is something someone asks. A hypothesis is like a person's theory.
Answer:
The body's cells use oxygen for metabolism, and this process creates the waste product carbon dioxide. With the help of the lymphatic and circulatory systems, the skeletal system works with the respiratory system by creating red blood cells in the bones that aid in respiration facilitated by the lungs.
Answer:
A. Domain, kingdom, phylum only
Explanation:
The domain is Bacteria, Archaea, and Eukarya which every living thing falls under, the kingdom is every animal (now that's excluding plants and bacteria), and the phylum is a primary category in biological taxonomy especially of animals that ranks above the class and below the kingdom.
The possible answers are :
A. it makes up the outer layer of the brain
B. it's composed of an axon.
C. it transmits nerve signals from one area of the CNS to another.
<span>D. it's composed of dendrites
The correct answers are A and D
The gray matter of the brain is made out of nerve cell bodies, dendrites, and unmyelinated axons. The outer layer of the brain's cortex is made out of the gray matter and the inner layers are made out of white matter.
The white matter is made out of </span>myelinated axons that transmit nerve signals throughout the nervous system. The white matter is white because the myelin that surrounds the axons is white.
