A scientific idea becomes valid when it is A. Tested

B. Biased

C. Permanent

D. Complex

because you played too much red dead

me i got l u m b a g o

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

trachea, alveoli, lung capillaries, arteries