There is a tiny muscle attached to the malleus, but if the muscle contracts, the sound will not be efficiently passed to the next structure, which is called the ________

A) incus
B) stapes
C) tympanum
D) oval window


A

Biology & Microbiology

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Tin is commonly found:

a. in coastal sediments. b. in oceanic sediments. c. dissolved in seawater. d. in manganese nodules. e. at the bottom of trenches.

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In the figure above, what is the ratio of

phenotypes in this case?

a. 1: 1:1:1 b. 3:1 c. 6:3:3:1 d. 9:3:3:1 e. 15:1

Biology & Microbiology

You are working on a drug to affect heart function, and you are told to direct the drug to change the relaxation of the ventricles. If your drug is successful, it will alter

A. the oxygen content in the blood. B. the force of contraction of the atria. C. venous pressure. D. diastolic pressure. E. systolic pressure.

Biology & Microbiology

After papaya seeds germinate, the hypocotyl elongates and forms a hook. This hook straightens and pulls the cotyledon and the shoot tip of the seedling into the air, leaving the seed coat in the soil. This method of embryonic shoot emergence is most similar to shoot emergence in which plant?

A. corn B. garden bean C. onion D. pea

Biology & Microbiology