Answer:
The first graph is the correct one.
Explanation:
The first graph shows a bell-shaped curve. This type of curve is used in results that present a normal distribution of variables, where the conclusive values are grouped around an average. This makes this type of graph ideal for representing data that shows that four-year-olds score higher on a self-control assessment related to how much longer they listened to classical music while reading. This is because these data are grouped around an average that allows this type of conclusion to be taken.
Answer:
The amount of target DNA segments doubles with each cycle of PCR.
Explanation:
A polymerase chain reaction is an in vitro technique that is performed in the labs to replicate the DNA from a very small amount of DNA sample. The DNA sample is replicated or double in a very small amount of time that is the target sample doubles after each cycle.
The PCR technique is based on the DNA replication mechanism and thus employs the primer, A Taq DNA polymerase enzyme and the adequate amount of temperature.
Thus, the selected option is correct.
Answer:
93 billion light years
Explanation:
The proper distance—the distance as would be measured at a specific time, including the present—between Earth and the edge of the observable universe is 46 billion light-years (14 billion parsecs), making the diameter of the observable universe about 93 billion light-years (28 billion parsecs).
The science that describes populations is called Demography.
Demography is the study of human population dynamics. It entails the study of the size and density, distribution, and vital statistics such as births, marriages, deaths, aging, migration among other factors that affect a population. In other term is the Quantitive and qualitative aspects of human population.
its due to diffusion this happens some times osmosis as well
