In the krebs cycle:
1) pyruvate is broken down into co2 molecules
2) glucose is broken down into nadh and co2
3) co2 is converted into pyruvate and o2
4) nadh and co2 are converted into atp

life would be meaningless without memes

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question