Where can everyone's roots be traced back to?

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates