Which of the following organisms on the food web shown above is a primary consumer A: duck
B: rabbit
C frog
D green plants

Environmental impacts on evolution : mastery test

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

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