Contraction of Hepatitis A, B, & C
What will be an ideal response?
A - Through ingestion/food
B & C - Blood & sex
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Color vision has much greater resolution than night vision (vision that is mostly in shades of gray). Which of the following is the best explanation for why this is so?
A) A single cone photoreceptor often connects to a single bipolar cell and a single ganglion cell while as many as 100 rods will converge to a single ganglion cell. B) There are many more cone photoreceptors in the eye than rod photoreceptors. C) There are several types of cone photoreceptors, each of which enrich the clarity and resolution of vision. D) A larger proportion of the brain's visual cortex is active during the day when our cone photo receptors are most active.
Prolactin is secreted during pregnancy to stimulate milk synthesis so that milk will be available by the time the infant is born.
Answer the following statement true (T) or false (F)
In response to severe injuries or burns, the body may repair itself by producing scar tissue to fill the damaged area. This process is called ________.
Fill in the blank(s) with the appropriate word(s).
What unit of light stimulates photoreceptor cells in the retina?
A) photon B) refractive index C) glutamate D) gamma ray