Most bony fishes have a hard plate that covers the gills on each side of the head called the
A. radula.
B. pharyngeal slits.
C. lateral lines.
D. operculum.
E. gill arches.
D. operculum.
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Autoinhibition can reduce enzymatic activity by:
A. reducing the quantity of active enzyme in the cell. B. preventing self-assembly of oligomer. C. requiring a ligand for activity. D. requiring an auxiliary protein for activity. E. All of the choices given are true.
Homeostasis is ultimately regulated by:
a. the brain. b. the endocrine glands. c. the oil glands. d. the exocrine glands. e. the circulatory system
A person with type B blood could safely receive a transfusion of blood from someone with blood type
A) B. B) AB. C) O. D) Both A and C E) Any of these
Which of the following nervous system diseases is treated with both passive and active immunization?
A) arboviral encephalitis B) botulism C) primary amebic meningoencephalopathy D) rabies E) West Nile encephalitis