Which characteristic makes osmosis different from diffusion? 1. Osmosis requires facilitation by an energy-carrying molecule, such as ATP. Diffusion requires no additional energy to move molecules across the concentration gradient. 2. Osmosis is used for gases, such as oxygen and carbon dioxide. Diffusion is used for water that contains salt or sugar molecules. Net movement in osmosis is from areas of higher water concentration to areas of lower water concentration. 3. Net movement in diffusion occurs from areas of higher solute concentration to areas of lower solute concentration. 4. Osmosis occurs through a permeable membrane. Diffusion must occur through a semipermeable membrane.

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?

Which animal is a producer in this ecosystem

What material did the moon come from?