Use the Following Information to Answer the Question

question 20

Multiple Choice

Use the following information to answer the question.
Healthy individuals of Paramecium bursaria contain photosynthetic algal endosymbionts of the genus Chlorella. When within their hosts, the algae are referred to as zoochlorellae. In aquaria with light coming from only one side, P. bursaria gather at the well-lit side, whereas other species of Paramecium gather at the opposite side. The zoochlorellae provide their hosts with glucose and oxygen, and P. bursaria provides its zoochlorellae with protection and motility. P. bursaria can lose its zoochlorellae in two ways:
(1) if kept in darkness, the algae will die; and (2) if prey items (mostly bacteria) are absent from its habitat, P. bursaria will digest its zoochlorellae.
A P. bursaria cell that has lost its zoochlorellae is aposymbiotic. If aposymbiotic cells have population growth rates the same as those of healthy, zoochlorella-containing P. bursaria in well-lit environments with plenty of prey items, then such an observation would be consistent with which type of relationship?

• A) parasitic
• B) commensalistic
• C) toxic
• D) mutualistic

Understand the behavioral perspective on personality and its implications.

Identify personality assessment methods and their cultural considerations.

Understand the concept of the marriage gradient and its impact on partner choice.

Differentiate between passionate and companionate love within relationships.

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Definitions:

Recommendations

Suggestions or advice given based on analysis or expertise, often seen in consumer goods, entertainment, or software applications.

Trusted Folder

A directory on a computer that is designated as safe, where files and applications are allowed to execute without additional security checks.

Encrypting

The process of converting data or information into a code to prevent unauthorized access, ensuring data privacy and security.

Front-end Database

A user interface or application that allows users to interact with a database directly, often designed for ease of use.