The difference between an endothermic reaction and an exothermic reaction is that in an endothermic reaction heat is and in an exothermic reaction heat is .

A) absorbed, released
B) released, absorbed
C) created, destroyed
Eliminate
D) destroyed, created

S

6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.

Which organelle releases chemicals that break down large food particles into smaller ones?

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.