Fish definitely have a central nervous system!
It contains their brain, spinal cord and Medulla Oblongata (which is a connecting the brain with the spinal cord!)
Their brains even have the same parts as the human brain! For example, they also have a cerebellums
Answer:
animals, food, drink, a good area to live in, and ofc oxygen
Explanation:
<span>Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0 and 100%.</span>