Following Each of Earth's Five Mass Extinction, the Diversity of Life

question 42

Short Answer

Following each of Earth's five mass extinction, the diversity of life on Earth has ____________________ [increased or decreased] over time.

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Definitions:

Lethargy

A state of sluggishness, drowsiness, or lack of energy, which can be a symptom of various conditions.

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the brain and nervous system.

Serotonin

A neurotransmitter that contributes to feelings of well-being and happiness, also involved in regulating mood, appetite, and sleep among other physiological processes.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response, playing a key role in attention and responding actions in the brain.