In the stomach, food processing continues and secretions from stomach glands aid the initial digestion of 

A. carbohydrates.
B. nucleic acids.
C. vitamins.
D. proteins.
E. lipids.


Answer: D

Biology & Microbiology

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Vascular plants hydrate photosynthetic cells using _________, whereas bryophytes do soVascular plants hydrate photosynthetic cells using _________, whereas bryophytes do so using _____________

A. surface water; soil water B. soil water; surface water C. xylem; phloem D. xylem; surface water

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The area labeled "C" in the accompanying figure is ____

a. a nucleus b. chromatin c. the nuclear membrane d. a vacuole e. a nucleolus

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The retina is composed of four layers of cells, which are the pigmented cells, photoreceptor cells, bipolar cells, and the ganglion cells. Axons of the ganglion cells become the optic nerve

Indicate whether the statement is true or false

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Astronomy and astrology are different in that 

A. astrology does not use facts. B. astronomy does not make predictions. C. astrology does not test its rules. D. astronomy does not form rules.

Biology & Microbiology