Which statement best compares nucleic acids and amino acids? O Nucleic acids are monomers and amino acids are polymers. O Nucleic acids are polymers and amino acids are monomers. O They are both polymers of different macromolecules. O They are both monomers of different macromolecules.

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.

Match the description of each organism to the appropriate category

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?