Which of the following summarizes the role of the hypothalamus? a. it connects the endocrine and nervous systems and controls the pituitary gland. b. it controls the rate at which cells burn fuels from food to produce energy. c. it produces glucagon and insulin to control glucose levels in the blood. d. it releases adrenaline as a response to fear, stress, and excitement.

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.