The onset of rem sleep the release of neurotransmitters called

stops; monoamines.

Explanation:

Monoamines are biochemical substances derived from amino acids through the decarboxylation process. The main monoamines are catecholamines (namely dopamine, norepinephrine, epinephrine), originating from tyrosine; tryptamine-derived serotonin and histamine from histidine. All monoamines are directly related to emotional disturbances and can be blocked through REM sleep. This is because the onset of REM sleep prevents the release of these neurotransmitters called monoamines.

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation: