Dual-energy X-ray absorptiometry (DXA) is used to assess:
A) energy expenditure.
B) genetic predisposition for obesity.
C) body composition.
D) body mass index (BMI)
Answer : C) body composition
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How many tetrads are present in a single elephant cell (2n=56) during metaphase I of meiosis?
What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about tetrads? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Macroscopic fossils of organisms thought to be animals first appeared in rocks deposited around _____ million years ago
A. 575 B. 542 C. 420 D. 360 E. 100
Which cells are part of the vertebrate peripheral nervous system?
a. afferent neurons b. motor neurons c. efferent neurons d. afferent and efferent neurons e. afferent, motor and efferent neurons
____ are multicelled projections that protrude
from the lining of the small intestine.
a. Sphincters b. Brush borders c. Microvilli d. Villi e. Macrovilli