a carbohydrate molecule is

a) a macromolecule made of amino acids that provides structure for a cell and is not soluble in water
b) made up of a chain of monosaccharides that transport genetic coding from one end of the cell to another
c) made up of the monosaccharide glucose and serves as an energy reserve in plants and animals
d) a chain of amino acids that can be used for protein synthesis, protection, and increasing reaction speeds

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

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.

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air