Select the endocrine gland whose secretory function is under direct control of the sympathetic preganglionic
neuron.
a. pancreas
b. thyroid
c. adrenal medulla
d. adrenal cortex
e. posterior pituitary
C
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Which of the following is an example of a mutualistic association involving a fungus?
A. Fungal hyphae penetrate a plant root and provide the plant with nutrients and receive organic molecules in return. B. Fungal spores infect and then eventually kill an insect. C. A fungus produces rings that allow it to capture and feed upon nematode worms. D. A fungus invades the xylem of a tree and eventually kills it. E. A fungus causes Athlete's foot in a human.
The complete replacement of one type of organ with another is called ____
a. paedomorphosis b. heterochrony c. homeosis d. homoplasy e. allometry
Cones are responsible for:a
night vision. b. the detection of movement. c. dim light vision. d. peripheral vision. e. the perception of fine detail
The complement cascade and its by-products contribute to
A. attracting phagocytes to sites of infection. B. triggering inflammation. C. triggering release of interferons. D. triggering inflammation and release of interferons. E. both triggering inflammation and attracting phagocytes to sites of infection.