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) stapes B) organ of Corti C) saccule D) utricle
Answer: C
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Two ways in which new alleles can become incorporated in a population are
(a) mutation and genetic drift. (b) selection and genetic drift. (c) selection and mutation. (d) mutation and gene flow.
What is a muscle fiber?
A. A single cell of a muscle B. A group of muscle cells that make up the same muscle group C. The myosin that makes up the contractile unit of a muscle cell D. The connective tissue outer covering of a muscle
What is the process that results in water droplets being forced out of the leaves of some plants?
a. transpiration b. guttation c. osmosis d. hydration e. ecdysis
The homeostatic interaction between the endocrine system and which other system is demonstrated by
insulin and growth hormone supporting delivery of nutrients to all cells? a. circulatory system b. lymphatic system c. digestive system d. skeletal system e. muscular system