Best Answer: A satellite in a polar orbit passes over both poles, but the earth rotates beneath it. The time taken for each orbit of the earth depends on the height of thsatellitete. If the satellite is in a circular orbit 260 kilometers above the surface it will have an orbital period of two hours.
Answer:
B
Explanation:
Gas exchange provides oxygen that is required for aerobic cellular respiration. Aerobic respiration produces more ATP molecules than anaerobic respiration. This is because oxygen acts as the ultimate proton acceptor (in the Krebs/Citric cycle) in the matrix of the mitochondria to form water as the waste product. This allows a proton motive force to be created in the mitochondria that is harnessed by ATP synthase to produce ATP molecules.
A stem cell is an extraordinary, early stage, unspecified cell that has the potential to develop into a number of specialized cell types.
there important because they can replace cells that have been lost or damaged
An ancient mummified rock
So there is something to compare the changed part of the experiment too. The reason why I created a control group for if My plants grew faster in the dark or the light is to compare the growth speed if there was any. I put one on my porch outside where it was under direct sunlight. I put another on my desk where it got light only on certain parts of the day and I put the last one in my closet where it hadn't received any sunlight. in this case my plant on my desk would be my control group.
Hope this helps :D<span />