The Endosymbiotic Theory Says That Precursor Eukaryotic Cells Acquired Flagella

question 38

Multiple Choice

The endosymbiotic theory says that precursor eukaryotic cells acquired flagella by endosymbiosis with a _____ ancestor, and others gained photosynthetic ability from endosymbiosis with a _____ ancestor.

• A)protozoan, algae
• B)archaea, cyanobacteria
• C)spirochete, cyanobacteria
• D)helminth, algae
• E)None of the choices are correct.

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Definitions:

Acute Stress

This is a short-term physiological response to an immediate perceived threat, challenge, or scare.

Stress Response

The body's reaction to any demand or threat, activating physiological changes to face the challenge.

Emotion of Anger

A strong feeling of annoyance, displeasure, or hostility.

Fight

A confrontation or struggle between individuals or groups, often involving physical violence or arguments.