Placing celery sticks in fresh water will make them more turgid and harder. This is because
A. the celery is hypotonic to fresh water.
B. the celery is hypertonic to fresh water.
C. the celery is isotonic to fresh water.
D. water moves from the celery sticks into fresh water.
E. None of the choices are correct.
B. the celery is hypertonic to fresh water.
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You find a wormlike animal while scuba diving and want to determine whether it is a nudibranch, a polychaete, or a flatworm. Finding which of the following traits would best help you classify the mystery animal?
A) bristle-like structures on tiny appendages B) a coelom C) the ability to swim D) bright coloration E) sexual reproduction
The ________ projection illustrates saccharides as linear, whereas the ________ projection suggests the spatial relationships of saccharides
Fill in the blank with correct word.
The U.S. Preventive Services Task Force recommended that women who are not at risk for breast cancer wait to have yearly screening mammograms until age 50, as opposed to the previous recommendation of age 40, because
A) breast tissue is more sensitive to radiation damage before menopause than after. B) the cost of the screening is not covered by insurance until after a woman reaches menopause. C) most forms of breast cancer do not develop until later in life. D) the method of screening is more accurate in older women than younger. E) delaying the screening ensures that younger, more at-risk women, are able to schedule the preventive tests.
A developmental theory is a systematic statement of general principles that provides a framework for understanding how and why people change as they grow older.
Indicate whether the statement is true or false.