Use the Following Information to Answer the Question

question 2

Multiple Choice

Use the following information to answer the question.
Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "chromatophores." The chromatophores 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 relabeling P. chromatophora as a mixotroph instead of an autotroph?

• A) a pigmented central vacuole, surrounded by a nucleomorph
• B) a vacuole with food inside
• C) a secretory vesicle
• D) a contractile vacuole

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Definitions:

Expected Return

The weighted average of all possible returns for a given investment, with weights being the probabilities of each outcome.

Risk-Free Rate

The hypothetical return rate on an investment that carries no risk of losing money, commonly illustrated by the interest rate on government securities.

Multifactor Model

A financial model that employs multiple factors in its calculations to explain market phenomena and/or equilibrium asset prices.