living things like plants that take in the suns energy and turn it into chemical energy are known as:

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.

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

How many types of rock can form from the rock cycle