In order for plants and animals to be able to use nitrogen, n2 gas must first be converted to more a chemically available form. review the picture of the nitrogen cycle. one type of organism is responsible for "fixing" nitrogen so other organisms can use the element. what organism is this? a) fungi b) plants c) animals d) bacteria

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

Which term specifically refers to an area of the body between a medial and lateral structure