Answer:
Evolution
Explanation:
Natural selection is usually defined as a process by which an organism or a specific type of living species adapts to a new environment in order to grow, develop, reproduce and protect themselves from the predators. During this time of migration, evolutionary changes occur in organisms over a specific period of time. It occurs naturally and there are several factors that affect these changes occurring in an organism.
Evolution simply refers to the growth, development, and expansion of an organism that occurs over a definite time period.
Answer:
https://www.nap.edu/read/5787/chapter/6
https://www.nature.com/scitable/knowledge/library/how-does-social-behavior-evolve-13260245/
Explanation:
I hope that it will be helpful
Different cell structure between the two.Prokaryotic is just a cell while eukaryote has room to have the nucleus and other organelles.
Answer:
Norepinephrine
Explanation:
Nerve cells and circulating hormones are the one responsible for vasoconstriction of the vessel walls, as they do not enter the tunica media of the blood vessel, the nerves do not synapse directly on the smooth muscle cells. Instead, they release the neurotransmitter, norepinephrine, which diffuses into the media and acts on the nearby smooth muscle cells, which result in contraction of the entire muscle cell layer and thus reducing the radius of the vessel lumen.
<span>The measles, mumps, and rubella vaccine is the live, weakened measles virus. The vaccine is made from an attenuated form of the virus and combined with protein or small viruses and bacteria extracted from the virus. Nucleic acid vaccine is a vaccine that is attenuated whole-agent vaccine.</span>
