Natural selection work's at the individual level, selecting those individuals who will more likely be able to contribute their genes to the gene pool of future generations. Therefore, an organism's is determined mainly by how many offspring they produce throughout their lifetime.

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid