The three types of cones that respond to different wavelengths are designated __________.
Fill in the blank(s) with the appropriate word(s).Fill in the blank(s) with the appropriate word(s).
red green blue
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Following an injury to his arm, a patient complains that he has lost the ability to flex his elbow and supinate his forearm. Which nerve do you suspect he has damaged?
A. Musculocutaneous nerve B. Median nerve C. Axillary nerve D. Ulnar nerve E. Radial nerve
Fortunately for science, there is but one single property that defines life.
Answer the following statement true (T) or false (F)
Veins
A. carry blood away from the heart. B. carry blood under very high pressure. C. may contain valves and are lined with endothelium. D. are described as strong, rigid vessels that always carry oxygenated blood. E. have thick, many layered walls.
The carbon dioxide molecules that bind to the hemoglobin molecule are attached to the ________ units.
A. globin B. iron C. calcium D. heme