The nutrients that yield the most energy per gram when metabolized are _______.
A) nucleic acids.
B) carbohydrates.
C) vitamins.
D) proteins.
E) fats.
E) fats.
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____________________ may be short-term or long-term.?
Fill in the blank(s) with correct word
Which is NOT true about viruses?
A. They may have genetic information in the form of RNA. B. They may reside in a host cell for years without killing it. C. They may cause a host cell to become cancerous. D. They consist of a nucleic acid surrounded by a carbohydrate shell. E. They require a host cell in order to reproduce themselves.
Afferent pathways of the postural reflexes come mainly from:
A. the cerebellum. B. the eyes, the vestibular apparatus, and the receptors involved in proprioception. C. muscle spindles and temperature receptors. D. nociceptors and chemoreceptors. E. the somatosensory cortex.
The principal functions of the ________ system include the absorption of oxygen, discharge of carbon dioxide, maintaining the acid-base balance, and speech.
Fill in the blank(s) with the appropriate word(s).