Answer:
Bone
Explanation:
Even though they are made of tissue they are not primary.
The answer to the 3rd question is that chromosomes are tightly coiled bundles of DNA and carry many genes. For the 4th question, asexual reproduction can occur by binary fission and creates exact genetic copies of a parent.
I think the answer is A hope this helps
c proteins .. most used cuz it provides energy and builds muscle