Answer:
True.
Explanation:
Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.
Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.
Enkephalins and endorphins act on the mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.
Hence, Enkephalins and endorphins are peptides that act like morphine.
The biome that exist closest to the Earth's poles are descibed as polar
Answer:
B
Explanation:
because their structures become more complex. Such as the human brain, over time we get more knowledge.
Answer: Here's The Cell Cycle Concept Map
It D. Two oceanic plates moving together
