It’s cardiovascular and circulatory. Sorry if its wrong :(. Have a nice day
Answer:
Genes are pieces of DNA (deoxyribonucleic acid) inside each cell that tell the cell what to do and when to grow and divide. Each gene is made up of a specific DNA sequence that contains the code (the instructions) to make a certain protein, each of which has a specific job or function in the body. Each human cell has about 25,000 genes.
Explanation
I already learned about genes, and this is what I learned
The cell needs to maintain homeostasis
The substances required for the proper function of the cell are transferred through the cell membrane.