Answer:
The answer is the 2nd trophic level.
Explanation:
Primary consumers get only 10% of the energy produced by plants that they eat. The higher you go up on the trophic scale, the less energy there will be.
Answer:
Complex Carbohydrates
Explanation:
There are different types of macromolecules and they all have different purposes, but for a marathon carbs, specifically, complex ones would be best. This is because carbs are the main source of energy for the body. Additionally, unlike proteins, they allow for long-term energy; so you could run an entire marathon without running out of energy.
3) Heredity because Heredity is defined as the characteristics we get genetically from our parents and our relatives before them.
Bacteria released oxygen into the atmosphere
