Answer:
Ear drum vibrates when the sound hits its function is to send these vibrations into the inner ear
Explanation:
The answer should be proteins. Because the protein is consists of different kinds of amino acids(usually 20 in total). And our cell can not produce essential amino acids itself.
Answer:
just find the answer in this explainations
Explanation:
New traits can also come from transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
