Which of the following is not required for osmosis to occur?
A) selectively permeable membrane
B) water
C) cellular energy
D) concentration gradient
Ans: C) cellular energy
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The pitch of a sound
a. is determined by the frequency of vibrations of air molecules. b. depends on the amplitude of the waves. c. is measured in units of decibels. d. both (a) and (b) above. e. all of these answers.
A coroner determines the cause of death to be strangulation because this delicate bone is fractured. Which bone is this?
A. Vomer B. C2 C. Hyoid D. Sphenoid E. Clavicle
The phrenic nerve arises from the _________ plexus and innervates the _______.
A) sacral, lower limbs B) cervical, diaphragm C) lumbar, abdominal wall D) brachial, upper extremities
Which of the following substances is NOT likely to trigger the immune response?
A) pollen grains B) bacteria C) self-antigens D) fungi E) virus particles