Which of the following organs also produce hormones as a secondary function of the organ?
A. adrenal cortex
B. testes
C. thyroid
D. ovaries
E. heart
Answer: E
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Individuals entering the room of a patient with Legionnaires' disease should wear a mask to prevent acquiring the disease from exposure to the patient.
Answer the following statement true (T) or false (F)
Which test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?
A. Radioimmunoassay (RIA) B. Ouchterlony double diffusion C. Immunelectrophoresis D. Quellung test E. Western blot
Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm). Is this a valid classification scheme?
A. No, because some worms are protists. B. Yes, because all worms are members of the same phylum. C. No, because the worm-like body plan has appeared many times through evolutionary history and is not a useful trait for classification. D. Yes, because all worm-like animals are more closely related to each other than they are to other animals.
The ________ is the organ that delivers oxygen and nutrients and removes carbon dioxide and wastes for the embryo and later fetus
Fill in the blank(s) with correct word