What is the function of the system shown below? * A. The nervous system removes waste from the body.
B. The nervous system excretes hormones to control
C. The nervous system protects and supports the organs and provides a framework the muscles use to support movement.
D. The nervous system gathers and interprets information and sends messages throughout the body.

Part a - which gene to compare? in this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true?