Clumps of atoms that are distributed throughout a water medium are referred to as a ____
a. solution
b. compound
c. colloid
d. solute
c
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The layer of serous membrane that is firmly attached to the surface of a lung is
called ______ ______. Fill in the blank(s) with correct word
The heart chamber that received blood from the vena cava is the:
a. right ventricle. b. left ventricle. c. left atrium. d. right atrium. e. both (c) and (d)
Why do things look blurry underwater without dive goggles or a mask?
A) The water magnifies the image because it is denser than the lens of the eye. B) Light moves more slowly through the water, causing images to appear larger and closer. C) Rather than air, light is moving from water into the cornea and is thus refracted too little for a sharp focus. D) The cornea does not function in water, causing the image to appear larger and closer. E) Light waves are scattered by the water before reaching the eye, causing the image to appear blurry and unclear.
During your last visit to the doctor, your blood pressure was 125/80. Calculate the "mean arterial pressure."
A) 102.5 B) 93.5 C) 205 D) 13.5