The personnel committee has gotten involved in matters beyond its jurisdiction.(became, become)

Where can dna be found in a prokaryotic cell

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred