Most air-breathing chelicerates use a series of 10-100 thin lamellae, collectively called __________, to extract oxygen from the air
Fill in the blank with the correct word.
Answer: Book lungs
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The cochlear duct lies between which two structures?
A) utricle and saccule B) vestibule and semicircular canals C) basilar and tectorial membranes D) scala vestibuli and scala tympani E) ganglion cells and the cochlear nerve
A ________ is a channel between cells.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not true of William Harvey?
A. He wrote about his work in the 1600s. B. He believed blood orbits the body similar to the way planets orbit the sun. C. He observed capillaries under the microscope. D. He measured cardiac output in a variety of animals. E. He experimentally demonstrated that blood returns to the heart after passing through the organs.
In a farm accident, a man has his arm severed midway between his wrist and his elbow. Which of the following bones was severed?
A. Radius B. Clavicle C. Ulna D. Humerus E. Both "radius" and "ulna" are correct.