An organism that can live in only one particular environment or that can survive on only one type of food would be called a specialist.
Answer: Excretory
Explanation: My grandpa went through this recently and I had to learn all about it. :(
In chromatin, substitution mutations are most common in linker regions. Option d is the correct answer.
Mutation by substitution When one nucleotide base is replaced by another, this occurs. Mismatch mutation A type of substitution mutation in which a single nucleotide is replaced, resulting in the coding of an incorrect amino acid, which usually results in a malfunctioning protein. Silent mutations are the result of genetic code redundancy (degeneracy): This is false, as silent mutations are the result of a base substitution that has no discernible effect on a protein's amino acid sequence.
Learn motre more about subsitution here:
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I believe its the mesosphere