Answer:
Amino acids are organic compounds: meaning they contain carbon, hydrogen, oxygen and nitrogen. They are the building blocks, or monomers of proteins. They are made of a carboxyl group and an amino group. There is also a side chain, that is different for each of the 20 amino acids.
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Children who have had cancer and undergone radiation to their head may experience permanent hearing loss.
Radiation therapy is increasingly being used on head and neck tumors, and close to 100% of the radiation delivered may reach the structures of the auditory system.
Unlike abiotic factors, which are physical factors like climate or soil structure, the biotic factors originate from the effects that living organisms have on each other in an ecosystem.
Organisms can have many different kinds of effects on each other. Some organisms compete with each other, some live in symbiosis and some feed on others like, for example. herbivores on plant and algae or carnivores on other animals.
So, biotic factors can be predation, cooperation, symbiosis etc.
Answer:
we now know that it is a piece of matter that cannot be split.
Explanation:
