The hilum of the lung:
a) is the point of entrance for inhaled air
b) is an indented area through which the bronchi, pulmonary vessels, lymphatic vessels, and nerves pass
c) is an elevated area through which the trachea, pulmonary vessels, and nerves pass
d) serves to anchor all pulmonary structures to the mediastinum
e) is the point of exit of exhaled air

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

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.

How does the nervous system affect the excretory system?