Question 22 (multiple choice worth 2 points)

(02.01h mc)
the great number and complexity of organic compounds is reflected in which of the following?

carbon has four valence electrons and can form many other molecules.

carbon is a nonreactive element which increases its stability.

carbon has the ability become stable by joining to only itself to create diverse chains.

carbon is nonpolar when combined with many different elements.

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.

Which of the following human activities resulted in the growth of the north american deer population?

What problem would a person most likely have if her kidney did not work correctly?