Cryptosporidium is an important waterborne disease. This organism is a ________.

A. bacterium
B. protozoan
C. virus
D. fungus


Answer: B

Biology & Microbiology

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The oldest proglottid of a tapeworm is

a. the scolex. b. the one nearest its neck. c. the one in its middle. d. the one at its end.

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__________ are body parts that look alike in

different lineages but did not evolve in a common ancestor. Fill in the blank(s) with the appropriate word(s).

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Cystic fibrosis is a genetic disease that leads to the production of excessive, thick mucus in the respiratory tract, causing frequent and serious respiratory infections

The defect is due to the production of a faulty membrane protein for the transport of the chloride ion. The protein exists in membranes, but it doesn't function normally. Based on this scenario, what is occurring at the molecular level in a person with cystic fibrosis? A) A receptor protein is being adversely affected. B) A carrier protein is being adversely affected. C) Protein filaments in the cytoplasm are being adversely affected. D) A recognition protein is being adversely affected. E) A channel protein is being adversely affected.

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________ is the ingestion of large molecules and foreign substances through the phospholipid membrane

Fill in the blank(s) with correct word

Biology & Microbiology