The force between each planet and the sun keeps the planets in orbit around the sun. a. magnetic b. frictional c. nuclear d. gravitational

format change of dna.  

the eggs of the insects should be the first thing collected at the scene.

false

bru what tyep of qus is dis

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.