Unlike Most Excavates, Giardia Trophozoites Have No Oral Groove and Are

question 31

Multiple Choice

Unlike most excavates, Giardia trophozoites have no oral groove and are unable to form food vacuoles. Thus, we should expect its nutrition (mostly glucose) to come from

• A) its mitosomes.
• B) endosymbiotic cyanobacteria.
• C) the ventral disk by which it adheres to the intestinal lining.
• D) osmosis involving aquaporins.
• E) plasma membrane proteins that are transporters or pumps.

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Definitions:

Category Hierarchies

Organizational systems that classify groups or objects into ranked categories based on shared characteristics or importance.

Representativeness Heuristic

A cognitive shortcut where the likelihood of an object belonging to a category is assessed based on how typical the object seems of the category.

Confirmation Bias

The inclination to seek out, comprehend, prioritize, and recall facts in a manner that corroborates one's established beliefs or conjectures.

Framing Effect

A cognitive bias where people decide on options based on whether the choices are presented with positive or negative connotations.