What answers are true about a simple diffusion? a. this transport is typical for large molecules. b. it is a form of passive transport. c. molecules travel with the concentration gradient. d. it is how oxygen and carbon dioxide travel across the membrane. e. it is how glucose travels across the cell membrane.

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?