Answer:
Trans-membrane proteins.
Explanation:
Membrane proteins are proteins that are found in the cell membranes of living organisms.
Hope this helped!
Quite sure C is correct ;) remember that humans are also placental mammals.
Answer:
The return of blood to the heart is assisted by the action of the skeletal- muscle pump. As muscles move, they squeeze the veins running through them. Veins contain a series of one-way valves, and they are squeezed, blood is pushed through the valves, which then close to prevent backflow.
Answer:
B.
that the biodiversity of the coral reefs will decrease if global temperatures continue to increase.
Explanation:
Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. Occupying less than one percent of the ocean floor, coral reefs are home to more than twenty-five percent of marine life.
Answer:
false. ulna is on pinky side, radius is on thumb side
Explanation:
