Samantha gets into an elevator in a large skyscraper, and the doors close. She hears no noise, feels no vibration, and sees no movement, but she nevertheless knows that she is on her way up

What specific part of her ear is allowing her to know that she is ascending? A) saccule
B) utricle
C) organ of Corti
D) stapes


A

Biology & Microbiology

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A species' fundamental niche:

A. is smaller than its realized niche. B. is what is actually occupied by that species. C. is determined by competition between species. D. has the necessary resources and conditions for survival. E. is always occupied in full by most species.

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Activity of the cerebral hemispheres is coordinated by signals that flow both ways across the ________

a. cerebellum b. midbrain c. optic nerve d. corpus callosum

Biology & Microbiology

Fuels used in cars, and the carbon dioxide cars emit, were originally carbon dioxide

A. fixed by vascular and nonvascular plants during photosynthesis about 300 mya. B. fixed in the tissues, decayed from dinosaurs after the Cretaceous mass extinction. C. released from volcanoes, and accumulated over centuries. D. trapped in rocks and compressed into oil and coal, during the Precambrian. E. trapped in the ocean and secreted into large coral reef structures, during the Mesozoic.

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Four of the five chemicals listed below are

hydrogen acceptors. Select the EXCEPTION.

a. oxygen b. water c. NADP+ d. NAD+ e. FAD

Biology & Microbiology