Which human body system does the mitochondria most resemble and why?

Digestive system resembles to the Mitochondria which is called as power house of cell.

Explanation:

The mitochondria function as digestive system by taking in nutrients and produces energy from them after catabolic process. Mitochondria takes in nutrient rich molecules, break them and produces energy rich molecules. Intestine in the digestive system perform the same function by extracting energy from the food to help body cells work.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.