Which portion of the lymphatic system is the major site of antibody production?
a. spleen
b. all lymph nodes
c. liver
d. thymus gland
e. thoracic duct
Answer: a. Spleen
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All arthropod bodies consist of all of the
following except
a. a head. b. a thorax. c. an abdomen. d. a tail. e. more than one of these
A fetus’s exposure to ____ is the leading preventable cause of birth defects
a. alcohol b. X-rays c. viruses d. thalidomide e. Toxoplasma gondii
_________ completes the burning of glucose and breaking down of pyruvic acid to CO2.
A) Glycolysis B) The Calvin cycle C) The citric acid cycle D) The electron transport chain
An important drug for organ-transplant patients is derived from a fungus that until recently was placed in the imperfect fungi category. Its classification was changed when a student at Cornell University discovered _____ in the species.
Fill in the blank(s) with the appropriate word(s).