The enzyme missing in Tay-Sachs disease is

a. cholinesterase.
b. hexosaminidase A.
c. neuraminidase.
d. hyaluronidase.
e. lactic dehydrogenase.


B

Biology & Microbiology

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The shorter urethra in females is one reason why urinary tract infections are more common in females than in males.

Answer the following statement true (T) or false (F)

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The type and amount of sediment found on a continental shelf is not important to organisms that live there

Indicate whether the statement is true or false

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Which tissue type attaches to bones and is

responsible for producing body movements?

a. skeletal muscle b. neural c. epithelial d. smooth muscle e. connective

Biology & Microbiology

Vaccinations are effective because they stimulate the production of ________ cells

A) helper T B) cytotoxic T C) memory D) plasma

Biology & Microbiology