Intestinal parasites can be identified by observing stool samples for the presence of

A) cysts.
B) antibodies.
C) LPS.
D) blood.


Answer: A

Biology & Microbiology

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A population bottleneck...

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When one plant is shaded by another, why is the ratio of far-red to red light increased compared to an unshaded plant?  

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Which soil region tends to accumulate mineral ions but relatively little organic matter, and is generally penetrated by mature tree roots?

a. A horizon b. B horizon c. C horizon d. D horizon e. O horizon

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The abdominal segments of Drosophila have no appendages. Loss of function of bithorax genes results in appendages forming in these abdominal segments. Therefore, __________

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Biology & Microbiology