Answer:
(C RNA can catalyze biological reactions and most likely appeared before DNA.
Explanation:
From my knowledge, I believe...
RNA most likely appeared before DNA and is known to be an unstable molecule.
<em>kiniwih426</em>
Answer: DNA
Explanation:
A chromosome is a thread-like material with a long structure found in the cell nucleus. It mainly contains DNA and proteins. Due to the presence of DNA in chromosomes, it carries several genes.
The total number of chromosomes in human cell is 46: 44 are non-sex chromosomes while 2 are sex chromosomes
1. Nucleus
2.Different
3. Size
4. Adapted
5. Body
6. Job
7. Better
The answers A. C. D. are all physical reactions
The answer is B. Digestion of food
When food is digested it is chemically broken down
Hope this help!
