True or false mark twain made the first atomic bombhey guys it's under health i meant to put it under history

When studying heredity, what is the relationship of dna based and traits? super urgent !

What parts of the cardiovascular system are affected with atrial fibrillation?

Select the correct answer. which is the safest and most effective way to get a deeper stretch? a. massage the muscles being stretched b. inhale and push the stretch until it hurts c. lean into the stretch as you exhale d. place ice on your muscles before stretching