Answer is B. They absorb photons from sunlight.
Answer: D. downwelling
Downwelling is a oceanographic phenomena, in which the higher density material accumulates and sink below the low density water. The higher density sediments from the surface runoff sink down. The downwelling provides the supply of oxygen to the lower water layers along with the minerals present in the sediments. This allows the aerobic organisms to survive underwater. Therefore, Pedro should read the phenomena of downwelling to understand the fact that how aerobic organisms survive under water.
<span>Surface currents are generated largely by wind. Their patterns are determined by wind direction, Coriolis forces from the Earth’s rotation, and the position of landforms that interact with the currents. Surface wind-driven currents generate upwelling currents in conjunction with landforms, creating deepwater currents. </span>
By breathing more the cells get more oxygen, therefore breathing faster help to maintain homeostasis
Answer:
In the cholesterol biosynthetic pathway, the rate-limiting step is the reduction of HMG-CoA, which takes place in the existence of the HMG-CoA reductase enzyme. In case, when mutation takes place within the mentioned enzyme, it loses the tendency to combine with the substrate HMG-CoA, and as a consequence, the pathway fails to move forward and synthesis of cholesterol stops.
When the levels of cholesterol are high within the organism than the mutation of the enzyme HMG-CoA reductase results in less synthesis of cholesterol within the body of the organism and will eventually assist in balancing the level of cholesterol present within the body.
