Which is NOT a disease caused by a parasitic helminth?
a. leishmaniasis
b. onchocerciasis
c. schistosomiasis
d. trichinosis
Answer: A
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Enzyme induction occurs
A) when the substrate is present. B) when the organism is environmentally stressed. C) continuously. D) when the substrate is depleted.
Each immunoglobulin or TCR interacts with a single antigen, but MHC proteins can interact with more than one antigen
Indicate whether the statement is true or false.
What is the function of surfactant in the mammalian respiratory system?
A. reduction of surface tension in the fluid covering the alveoli B. capture and removal of inhaled foreign particles C. maintaining a moist surface D. transport of oxygen E. It functions as an antibiotic.
Pituitary dwarfism is caused by:
a. hypersecretion of thyroxine during childhood. b. hyposecretion of thyroxine during childhood. c. hypersecretion of growth hormone during childhood. d. hyposecretion of growth hormone during childhood. e. hypersecretion of epinephrine during childhood.