When a population is large and dense.
The heart receives more oxygen which helps it to pump the blood faster around the body to reach your muscles causing more blood to come to the surface. This is what i think so it may not be completely right.
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We need more info to answer this chief
Answer: Option B) They are more egotistical
Explanation:
A singly raised child is more likely to be egotistical i.e considering himself or herself to be better and more important than others.
This perception is simply due to the focused attention, endowment, care and nurture given to such a child (in the absence of any sibling) by the parents.
Thus, singly raised children are more egotistical than children with siblings
Step 1: Replication Fork Formation
Before DNA can be replicated, the double stranded molecule must be “unzipped” into two single strands. DNA has four bases called adenine (A), thymine (T), cytosine (C) and guanine (G) that form pairs between the two strands. Adenine only pairs with thymine and cytosine only binds with guanine. In order to unwind DNA, these interactions between base pairs must be broken. This is performed by an enzyme known as DNA helicase. DNA helicase disrupts the hydrogen bonding between base pairs to separate the strands into a Y shape known as the replication fork. This area will be the template for replication to begin.