Matt used a camera to take a picture of a rose on a piece of paper. In the picture, the rose appeared to be bright red, and the background appeared to be white. Then Matt placed a blue glass filter over the camera lens and took another picture. In this picture,
the rose appeared to be black, and the background appeared to be blue.

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 of the following represents a negatively charged ion? of t 7

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation