Answer:
(a) glucose
(b) sugar or carbohydrates
Explanation:
The cell uses respiration to convert glucose into energy and some of the electrons that passes through out this process are the ones that enter into the electron chain reaction.
Now, in photosynthesis yo convert CO2 into carbohydrates/organic compounds and O2
T because the earth has some iron but it has a molten core which is mostly iron giving earth its magnetic field
The correct answer is this: IT BECOMES LESS DENSE AND RISES TO THE SURFACE.
The water at the earth's poles are cold and dense. This cold water sink and move along the ocean floor in a current. As it moves towards the equator, the cold water from the poles push up the warmer water, this becomes less dense and rise to the surface.
Answer:
Why don't we have a complete fossil record of all life that's ever lived? Fossil formation requires a rare mix of physical and biological conditions. Fossils must be exposed at Earth's surface to have a chance of being found. Fossils can be destroyed when rocks erode, melt, or change composition.
Explanation:
For many reasons, the fossil record is not complete. Most organisms decomposed or were eaten by scavengers after death. Many species lacked hard parts, which are much more likely to fossilize. Some rocks and the fossils they contained have eroded and disappeared.
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