In Most Salt Lakes, Which Microbial Group Is the Major

question 41

Multiple Choice

In most salt lakes, which microbial group is the major oxygenic phototroph?

• A) cyanobacteria
• B) Dunaliella, a eukaryotic alga
• C) halophilic Archaea
• D) purple nonsulfur bacteria

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Definitions:

Neurotransmitter

Chemical substances in the brain that transmit signals from one neuron to another, playing key roles in mood, cognition, and behavior.

Emotional Intensity

The magnitude of emotional reactions to events or situations.

Basic Emotions

Fundamental feelings that exist across cultures, often considered to include happiness, sadness, disgust, fear, surprise, and anger.

Physiological Arousal

The bodily responses to stimuli or activities that increase heart rate, respiration, and energy levels, often associated with stress, excitement, or physical exertion.