What antibacterial chemical is present in tear fluid?
A) antibodies
B) complement
C) defensins
D) lysozyme
E) interferon
D
Bloom's Taxonomy: Knowledge
Section: The Body's First Line of Defense
Learning Outcome: 15.6
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Metabolic pathways that regenerate their starting molecule are called ________ pathways.
A. cyclic B. convergent C. divergent D. linear E. bidirectional
How do bioluminescent animals deal with light?
a. They absorb light from the environment. b. They reflect light to the environment. c. They produce their own light. d. They transmit light form the environment.
Which of the following is NOT an endocrine gland?
A. pituitary B. testes C. thymus D. hypothalamus E. All are endocrine glands.
Why is snail fever a common name for infections with Schistosoma?
A) The worms look like snails. B) They are contracted by eating snails. C) Snails are the intermediate host. D) Physical contact with snails may result in infection. E) The larval stage looks like a snail.