Answer:
A
Explanation:
The correct option is (a). Chromosomes are long thread-like structures present in the nucleus of a cell which contains hereditary information of the cell (genes). Genes are the part of a chromosome and made up of DNA.
Answer:nitrogen probably because I see carbon the both c’s
Explanation:
It’s says in the image
Around 1.5 billion years after prokaryotes.
A competition starts I guess
Answer:c
Explanation:
Have a common understanding in the classification of organisms