genetic
Explanation:
each have phenotype and genotype
A substance or layer that underlies something, or on which some process occurs, in particular.
• the surface or material on or from which an organism lives, grows, or obtains it's nourishment.
• the substance on which an enzyme acts.
Basically they just take it into the cell by engulfing it. Once it is inside the cell it is broken down!
The initiation of DNA replication<span> occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the </span>DNA<span> double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the </span>DNA<span> strands, thereby pulling apart the two strands.</span>
It is on the organ level. The heart consists of cardiac muscle tissue and is part of the cardiovascular organ system. It is basic for the human body to work properly since it provides oxygen for the human body.
