When biological membranes are frozen and then fractured, they tend to break along the middle of the bilayer. the best explanation for this is
(a) the integral membrane proteins are not strong enough to hold the bilayer together.
(b) water that is present in the middle of the bilayer freezes and is easily fractured.
(c) hydrophilic interactions between the opposite membrane surfaces are destroyed on freezing.
(d) the carbon-carbon bonds of the phospholipid tails are easily broken.
(e) the hydrophobic interactions that hold the membrane together are weakest at this point.

Mike was adopted, and his biological family history is unknown. although he is healthy, he would like some understanding of his genetic makeup, including potential health risks and genes that he could pass on to his children. mike has heard about commercial laboratories that can compare segments of your dna to those of people with common hereditary diseases in order to give you some idea of how susceptible you are to the diseases. the results of these types of tests are highly inconclusive. if mike's dna showed that he shares similarities in a segment of dna with people who have a given disease, his chances of developing that disease or passing it on to his children may be slightly elevated, but they are not 100 percent. these tests can cost more than $2,500 and are not covered by many insurance companies. do you think that mike should undergo the genetic tests? explain your answer. what are the potential pros and cons of having such tests done? describe how the availability of these genetic tests might affect the frequency of genetic diseases in individuals and populations.

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

What will happen if deforestation continue to destroy the green plant on the planet