The <u><em>correct answer</em></u> is:
He needs to select a more representative sample.
Explanation:
Choosing students from the basketball team for the sample he uses on a study of heart rates and exercise will be a biased sample. This is because students on the basketball team are potentially healthier than other students, which means that exercise will not have a large an effect on their heart rate as it would if they were not as healthy and not as physically fit.
In order to reduce the amount of bias, he should choose students from different groups throughout the school.
Genes are responsible for every cellular differences in a way that it is active on the same type of cell and inactive in another type of cell. The reason for genes to be active in a specific cell is because of enzymes or protein that turn it on.
A biotic factor is all of the students in the classroom.
Hope this helps!!
Answer:
None of the above
Explanation:
Diversifying is the right kind of selection
The correct order from smallest to largest
would be:<span>
<span>H < C < N < O < Amino acid < Globular
Structure < Amino acid sequence</span>
<span>The smallest should begin from the basic elements. Among C,
H, O and N, the lightest is Hydrogen, followed by Carbon, Nitrogen, and Oxygen.
Next is the amino acid which is the most basic unit of protein. This is the
linear structure. Followed by the globular structure which is the tertiary
structure. The whole would be the amino acid sequence which is quaternary
structure.</span></span>
