B. Keratin
Even our nails are made up of it
Normal cells<span> listen to signals from neighboring </span>cells<span> and stop growing when they encroach on nearby tissues (something called contact inhibition.) </span>Cancer cells<span> ignore these </span>cells<span> and invade nearby tissues. Benign (non-</span>cancerous<span>) tumors have a fibrous capsule.</span>
C
The "Nucleus" contains the genetic information of the cell in the form of deoxyribonucleic acid (DNA) or chromosomes and thus, controls cell growth and multiplication. It is also the site of DNA replication (formation of an identical copy of DNA).
While the "Golgi apparatus", or Golgi complex, functions as a factory in which proteins received from the ER are further processed and sorted for transport to their eventual destinations: lysosomes, the plasma membrane, or secretion.
Phylum: Chordata hope this helps