The main difference is that organisms that have similar characteristics could be in the same species or have common ancestors
Answer:
b
Explanation:
It is a fossil of sea shells
A I think but can you get a better picture of the questions
Answer:
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Explanation:
That students who study make better grades than those who do not.