Question

if the same base pairs are used to code for all organisms, why is there so much variation among organisms?
the order of the codons differs between organisms.
the order of the codons is the same between organisms.
the codons in each organism are the same.
the codons in each organism differ.

Explanation:

DNA is composed of four base pairs (A - T, C - G). Codons are triplets of these base pairs. The order of codons (sequence of base - pair triplets) in DNA/RNA determines the amino acid sequence during protein synthesis. Different organisms have different codon orders, which leads to different proteins. Proteins are crucial for an organism's structure, function, and regulation, resulting in variation among organisms.

Answer:

The order of the codons differs between organisms.