Phytoplanktons are also called microalgae. They are the foundation of the aquatic food web and the primary producers. They feed everything from microscopic to multi-ton whales. Thus, the answer to the question above is letter B. Provide basis of food chains.
Stage 1 - <span>The ear collects compression waves.
Stage 2 - </span>The ear amplifies the compression waves.
Stage 3 - <span>The amplified waves stimulate the hair cells of the ear.
Stage 4 - </span><span>The hair cells transmit nerve impulses to the brain
Stage 5 -</span><span>The brain interprets the nerve impulses.
Hope this helps!</span>
The most widely effective solvent for organisms is a material that is nonpolar. This is because most of the molecules present in organisms are nonpolar so it would only dissolve in nonpolar solvents like lipids, DNA, proteins, amino acids and fats. Nonpolar molecules would share their electrons equally resulting to having no partial charges in the molecule. The electronegativities are cancelled by each atom. Examples of this are most of the organic compounds like benzene and hexane, carbon tetrachloride is also a nonpolar molecule. To identify whether the molecule is nonpolar or polar, you need to look at the structure and the electronegativities of the atoms.
In times of stress the sympathetic nervous system stimulates the adrenal medulla which then secretes catecholamines. The catecholamines includes; Dopamine, epinephrine and norepinephrine. Catecholamines are made by nerve tissue, the brain, and the adrenal glands. They help the body respond to stress or fright and prepare the body for "fight or flight" reactions.
