A constant is something that is kept the same throughout the course of a experiment. So I would guess C) because they are not doing anything special. If it’s not C then it is A. :)
Explanation:
Cumulonimbus clouds are a type of cumulus cloud associated with thunder storms and heavy precipitation. They are also a variation of nimbus or precipitation bearing clouds. They are formed beneath 20,000 ft. and are relatively close to the ground. ... These clouds often produce lightning in their heart.
Layers of fossils in pillars, the rock covering them is dated and we get an exact time of each layer.
Answer:
Production of ATP / cellular respiration
Explanation:
The mitochondrion is the powerhouse of the cell. It is responsible for cellular respiration.
