Q5.5: Which of these components contribute to the fluidity of the plasma membrane?
1. phospholipids
II. cholesterol
III. Proteins
IV. nucleic acids
I, II and IV
I, II and III
II, III and IV
I, III and IV

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

How does deforestation affect the water cycle? a. it increases the amount of runoff b.it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?