Which vitamin requires intrinsic factor in order to be absorbed?
A) B12
B) K
C) A
D) C
A) B12
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Which of the following is not a type of tissue?
a. muscle b. nervous c. embryonic d. epithelial
The cow had a/an______________ from rubbing against barbed wire
Fill in the blank(s) with correct word
When voltage-gated K+ channels open on the conductive segment of a neuron,
A. potassium enters, depolarizing the cell to a positive value. B. potassium exits, depolarizing the cell to an even more negative value. C. potassium exits, repolarizing the cell to a negative value. D. potassium enters, repolarizing the cell to a negative value. E. potassium enters, repolarizing the cell to a positive value.
The most likely outcome of nondisjunction is the production of a gamete receiving ________
A) no chromosomes B) 23 chromosomes C) 44 chromosomes D) 46 chromosomes E) 22 chromosomes