Concentration gradient across the membrane. Proteins in the membrane allow specific molecules through, passively.
Your answer is going to be A. Excretory.
Active transport (exocytosis, endocytosis, pumps, etc.)
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:
brainly.com/question/29383142
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Answer:
<h2>you could use a ball of styraphome </h2>
Explanation:
<h2>Because the earth is a circle and it would look similar you would also need to add some color</h2>
