Answer:
The nervous system transmits signals between the brain and the rest of the body, including internal organs.
Explanation:
75% species go extinct to be considered a mass extinction
The answer is C build muscle hair and nails
B. The recombinant DNA produced by the combination a vector and the gene of interest are inserted in the E. Coli, which produce multiple copies of this recombinant DNA alone with the chromosomal DNA expresses the gene.