Explanation:
Both phospholipid molecules and embedded proteins are
able to diffuse rapidly and laterally in the membrane. The
fluidity of the plasma membrane is necessary for the
activities of certain enzymes and transport molecules
within the membrane .and also The plasma membrane, or the cell membrane, provides
protection for a cell. It also provides a fixed environment
inside the cell, and that membrane has several different
functions. One is to transport nutrients into the cell and
also to transport toxic substances out of the cell .
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.
Answer:
they make a quick profit for farmers
Explanation:
cash crops are crops that are use to earn money after they are harvested
