A P Bursaria Cell That Has Lost Its Zoochlorellae Is Aposymbiotic

question 35

Multiple Choice

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) competitive
• C) toxic
• D) mutualistic

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Definitions:

Cellular Accident

Unexpected and unplanned events at the cellular level that can lead to mutations or cellular damage.

Secondary Aging

The aging process attributed to external factors and lifestyle choices, such as diet, exercise, and environmental exposures, distinct from biological aging.

Gerontology

The scientific study of aging and the problems that elderly individuals may face.

Primary and Secondary Aging

Distinction between the inevitable biological aging process (primary) and aging effects due to environmental and lifestyle factors (secondary).