What is a mutation A genetically beneficial DNA sequence

B a error in a DNA sequence

C a region of dna that does not code for a protein

D a common genetic variation

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

What is responsible for the uneven heating between the poles and the equator on any given day