Use the Following Information to Answer the Questions Below

question 48

Multiple Choice

Use the following information to answer the questions below.
Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "cyanelles." The cyanelles are contained within vesicles of the host cell, and each is derived from a cyanobacterium, though not the same type of cyanobacterium that gave rise to the chloroplasts of algae and plants.
-The closest living relative of P. chromatophora is the heterotroph, P. ovalis. P. ovalis uses threadlike pseudopods to capture its prey, which it digests internally. Which of the following, if observed, would be the best reason for relabelling P. chromatophora as a mixotroph?

• A)a threadlike pseudopod
• B)a pigmented central vacuole, surrounded by a tonoplast
• C)a vacuole with food inside
• D)a secretory vesicle
• E)a contractile vacuole

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Definitions:

Novelty Avoidance

The behavioral trait of preferring familiar objects and environments over new ones.

Habituation

The psychological process where an individual becomes accustomed to a stimulus after repeated exposure.

Visual-recognition Memory

The ability to recognize previously encountered visual stimuli and differentiate them from new stimuli.

Visual Preference

An individual's leaning or affinity towards certain visual elements over others, which can influence perception and choices.