Answer:
The skeletal system is vital in supporting the immune system because : Bones contain marrow, a porous material which creates both white and red blood cells. This replenishment of cells allows the body to fight and expel harmful bacteria, environmental toxins, foreign material e.t.c.
The white blood cells formed by the marrow are instrumental in isolating and destroying harmful particles (either on the site or in lymph nodes), or transporting them to the kidneys or bowels for excretion.
NOTE : Some people have marrow disorders which prevent their marrow from forming new cells; this is caused most often by cancer. Today, it is possible to transplant marrow from a healthy individual to a sick patient, and so help their bone marrow form new white and red blood cells to fight their sickness.
I hope it helps :)
Answer:
olfactory epithelium
Explanation:
In the context of the chemical senses, the olfactory epithelium is the lining of the roof of the nasal cavity which contains a sheet of receptor cells for smell.
Answer:
The Earth is 4.6 Billion years old.
QUESTION 2:
Option A is the correct answer.
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Answer:
Marine organisms trying to live in the water may not get enough oxygen to survive. Based on this description, which of the following is true?
Explanation:
Study island said so
