Answer:
Preganglionic neurons have cell bodies that lie within the brainstem or spinal cord and extend either as a cranial nerve or spinal nerve. Postganglionic neurons extend from the cell body to an effector cardiac muscle, smooth muscle, or gland. All autonomic neurons excite an effector.
Explanation:
It's considered a natural resource because it is energy that is not man made.
It's a renewable energy because it naturally gets replaced.
Answer:
an ANTIGEN
Explanation:
a foreign substance that invades your body is called an <u>A</u><u>N</u><u>T</u><u>I</u><u>G</u><u>E</u><u>N</u>. 8. When your body detects an antigen, antibodies are made and lock onto it. Once an antigen is recognized, your immune system can remember it the next time and protect you from getting sick again.
Amino acids are the building blocks of proteins. There are 20 of them in existence. For this item, we are to identify the number of different proteins that can be formed.
In the first position in the sequence, we can have 20 amino acids. Then, because one of which was already used for the first position, 19 amino acids can still be written in the second place. This goes on, and the number of proteins can be calculated as follow,
number of proteins = 20 x 19 x 18 x 17 x 16 x 15
number of proteins = 27,907,200
<em>ANSWER: 27, 907, 200 proteins</em>
The correct option is A.
Cell wall can be used to differentiate among fungal specimens because the proportions of the constituents of their cell wall vary greatly from fungus to fungus