The DNA has to replicate before mitosis to keep the number of chromosomes consistent. Hope this helps.
Answer:
Explanation:
In a lake, oxygenic phototrophs produce new organic material as well as O₂. If primary production rates are very high, the resultant excessive organic matter production can lead to bottom-water O₂ depletion from respiration and the development of anoxic conditions. This in turn stimulates anaerobic metabolisms, including anaerobic respirations and fermentations.
Organic matter that is not consumed in surface layers sinks to the depths and is decomposed by anaerobes.
In plants carbon dioxide is reduced into simple carbohydrates (e.g. glucose) with energy absorbed from the sun within the chloroplast.
This is also known as photosynthesis.
Hope this helps!
Im tired
help plants keep growing
Cohesion/adhesion - they help water act as if it were a "magnet"
