The Evolution of Eukaryotic Cells Most Likely Involved ________

question 9

Multiple Choice

The evolution of eukaryotic cells most likely involved ________.

• A) endosymbiosis of an aerobic bacterium in a larger host cell-the endosymbiont evolved into mitochondria
• B) anaerobic archaea taking up residence inside a larger bacterial host cell to escape toxic oxygen-the anaerobic bacterium evolved into chloroplasts
• C) an endosymbiotic fungal cell evolving into the nucleus
• D) acquisition of an endomembrane system and subsequent evolution of mitochondria from a portion of the Golgi apparatus

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Definitions:

Serotonin

A neurotransmitter that plays a key role in mood regulation, digestion, sleep, and other bodily functions.

Dopamine

Dopamine is a neurotransmitter that plays a pivotal role in the brain's reward system, influencing mood, motivation, and motor control.

GABA

Gamma-aminobutyric acid, a neurotransmitter in the brain that plays a key role in regulating nerve excitability and muscle tone.

Sensory Neurons

Nerve cells that transmit sensory information (sight, sound, feeling, etc.) from the body's receptors to the central nervous system.