The grinding apparatus of the digestive system of the crayfish is/are the
(a) oral teeth.
(b) gizzard.
(c) pharyngeal jaw.
(d) gastric mill.
(d) gastric mill.
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Genetic testing (select all correct choices):
A. will identify every allele of every gene you carry. B. will tell you whether or not you will contract breast cancer or Type II diabetes. C. will identify some alleles of some of your genes. D. will identify every risk factor you have for the most common types of cancer as well as for cardiovascular disease. E. none of these.
Sixteen-year-old Rhapsody has just learned that her younger brother Clyde is colorblind. Although she knows she has color vision because her cat, Juice, is clearly orange, and she reads that nearly all people with colorblindness are boys, she is concerned about her own sons one day. If she is a carrier for colorblindness, then the risk that a son of hers is colorblind is
A) dependent on the genes the child's father contributes. B) 1/8. C) 1/4. D) 1/2.
When is a cell committed to undergoing mitosis?
a. once it transitions from S to G2 b. once it transitions from G1 to S c. once it transitions from G1 to G0 d. once it transitions from G2 to prophase
The use of heat lessens the amount of time needed to disinfect or sterilize medical instruments
Indicate whether the statement is true or false