The activation energy of a reaction going on its own is 20 kj. if the reaction was treated with a catalyst, which would most likely represent the amount of energy needed to start a reaction?
15 kj
20 kj
25 kj
30 kj

Scientific method and data analysisa biology student wanted to determine if there is a relationship between resting heart rate and bodyheight. she gathered information from 12 classmates and constructed the table below. resting heart rate (beats per minute)student height (cm)155. 156156165180180190194195

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.