Many parasites, such as those that cause malaria, use antigenic variation to decrease virulence within a specific host
Indicate whether the statement is true or false.
Answer: FALSE
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The cyst form of Balantidium coli is the infective stage. It has one large kidney-shaped macronucleus and one small, round micronucleus. The troph is quite large, measuring 50 to 150 µm in length and 40 to 70 µm in width. What single feature is associated with this organism?
a. Falling leaf motility b. Shepherd's crook c. Presence of oocytes d. Cilia covering the troph
What second messenger is directly involved in activating protein kinase C (PKC)?
A. DAG B. cGMP C. G protein D. cAMP E. phospholipase C
A classic example of classical conditioning is _____.
A. Pavlov’s dog B. a sparrow singing a song C. Lorenz and his geese D. a cuckoo bird being a “brood parasite” E. watching television
Which of the following occurred in the Precambrian period
What will be an ideal response?