What is the role of the epiglottis?
A) Produces vocal sounds
B) Filters dust and other impurities from entering the respiratory system
C) Prevents food from entering the windpipe
D) Produces the positive or negative pressures that force air into or out of the lungs
C
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What do you know about signaling involved in cancer growth? What other information is related to the question?
What will be an ideal response?
DNA fingerprinting is currently used for ________
a. paternity testing b. all of the choices c. evidence in criminal trials d. identification of bodies
Phenylketonuria is a result of a deficiency of the enzyme ____________________. Fill in the blank(s) with the appropriate word(s)
Which base in an anticodon will pair with the base adenine in a codon?
A. thymine B. uracil C. cytosine D. guanine