C. Organ System
Like said in the definition above, an organ system is a group of organs working together to perform a specific function for the organism.
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Chromosomes are Inherited From Your Parents. One chromosome from each of your 23 pairs came from each of your parents. The two chromosomes of a pair (except for the sex chromosomes) contain the same genes, but the genes have small differences. Things like SNPs make each copy of a gene uniquely Mom's or Dad's.
Broccoli is found in it
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Answer should be death rate