What happens when a membrane contains a substantial amount of lipids that have chemical features that make them prone to forming more ordered structures (i. e., have saturated alkyl chains, such as sphingolipids, or are planar, such as cholesterol), even though it also contains other phospholipids with more fluidity (such as phosphoglycerolipids with unsaturated fatty acyl chains)?

Which of the following is a cost of urbanization? a-cities can provide a high standard of living. b-cities are hubs of entertainment and education. c-paving over land changes the environment. d-job opportunities are greater in urban centers.

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a. m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?