Which of the following is a major function of a gizzard?

A) mechanical digestion
B) HCl secretion
C) mucus secretion
D) nutrient absorption
E) enzyme secretion


Answer: A

Biology & Microbiology

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Which of the following is true about Euglena? 

A. They belong to the same phylum as Paramecium. B. They do not have flagella. C. They have a pellicle. D. They lack chloroplasts. E. They have sexual reproduction.

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Amniocentesis cannot be used to detect fetal

A) gender. B) intelligence. C) chromosomal abnormalities. D) biochemicals that indicate an inborn error of metabolism.

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Four of the five answers listed below pass through the atmosphere during their cycling. Select the exception

a. carbon b. oxygen c. nitrogen d. phosphorus e. water

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Most antihelminthic drugs function by

a. weakening the worms so that they can be flushed out by the intestines b. inhibiting worm metabolism c. blocking absorption of nutrients d. inhibiting egg production

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