The ____ is the innermost layer of the eye and contains the photosensitive cells
a. sclera
b. iris
c. conjunctiva
d. retina
d
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How many reactions take place during the Krebs cycle?
a) 4 b) 6 c) 8 d) 10 e) 12
This system provides nutrients for cells in all tissues and organ systems
A) muscular B) respiratory C) digestive D) nervous
Identify the statements that are true regarding the nature of the large proteins found within neurons. Select all that apply.
What will be an ideal response?
Differentiate graded potentials and action potentials. Select all that apply.
-summation of graded potentials can not occur but summation of action potentials are possible. -graded potentials are conducted in a decremental fashion and action potentials are conducted with a constant magnitude -the magnitude of graded potentials is variable and action potentials are all or none.