last line of defense is the first part.
and the defense is part of her system immunity. this makes sense since the immune system is used to guard against viruses and diseases
<span>The correct answer is A) a single amino acid may have more than one codon that translates for it.</span>
<span>This property of the codon is called codon degeneracy and is the redundancy of the genetic code. As a result, there is the multiplicity of three-base-pair codon combinations that specify an amino acid and that increases tolerance to point mutations (synonymous mutations). Usually, the codons encoding one amino acid differ in the second or third position.</span>
<span>Cross bridges are created when myosin heads bind to ATP. This phenomenon is basically muscle contraction at work. In order for myosin heads to be bound with ATP at the actin active site, it must be excited with Calcium.
Once myosin heads bind with ATP, it begins to slide and perform muscle contractions in the body, allowing a person to move.</span>
ATP is a high-energy molecule found in every cell. Its job is to store and supply the cell with needed energy. hope this helps :)
Answer:
not sure maybe b it sound right otherwise sorry
