In the dark, the Na+ channels in the outer segments of rod cells are

A. open.
B. closed.
C. primarily affected by inhibitory neurotransmitter input.
D. important in making the cell hyperpolarized in this resting state.


A. open.

Biology & Microbiology

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

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The rapid mitotic division of the zygote as it moves along the oviduct on its way to the uterus, becoming a pre-embryo. _____

A) Human chorionic gonadotropin

B) Zygote

C) Chorion

D) Morula

E) Folic acid

F) Fertilization

G) Blastocyst

H) Parturition

I) Cleavage

J) Ovulation

K) Placenta

L) Implantation

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