A selectively ________ membrane is one that allows some molecules to pass through but not others.

Fill in the blank(s) with the appropriate word(s).


permeable

Biology & Microbiology

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In vertebrates, how does the mechanism that stimulates hair cells differ from the mechanism used by rods and cones?

What will be an ideal response?

Biology & Microbiology

If a daughter expresses an X-linked recessive gene,

she inherited the trait from a. her mother. b. her father. c. both parents. d. neither parent. e. her grandmother.

Biology & Microbiology

LASIK treatment functions to improve eyesight by

A) completely removing a defective cornea. B) widening the iris. C) replacing the eye lens. D) inserting a corrective pupil. E) changing the shape of the cornea.

Biology & Microbiology

Suppose that a pink snapdragon (CRCW) is crossed with a white snapdragon (CWCW). What percentage of the progeny will be red?

a. 75% b. 50% c. 25% d. 0%

Biology & Microbiology