Answer:
during cellular respiration the cell uses oxygen to break down sugar. carbon dioxide is the waste product of cellular respiration that you breathe out each time you breathe.
Explanation:
CO2 is produced as a byproduct of this reaction.
Answer:
more worms are need for the soil to make it healthy
Explanation:
Worms help to increase the amount of air and water that gets into the soil. They break down organic matter, like leaves and grass into things that plants can use. When they eat, they leave behind castings that are a very valuable type of fertilizer. Earthworms are like free farm help.
The first, third, and fourth, because igneous, metamorphic, and sedimentary rock phases can all occur.
B. sexual selection, which alters allele frequencies in the gene pool.
Answer:
the factors that a cell considers when deciding whether or not to move forward through the cell cycle. These include both external cues (like molecular signals) and internal cues (like DNA damage).
Explanation: