The following questions refer to the hypothetical patterns of taxonomic hierarchy shown in Figure 26.2.
-Ultimately, which of these serves as the basis for both the principle of maximum parsimony and the principle that shared complexity indicates homology rather than analogy?
Definitions:
Acetylcholine
A neurotransmitter in the nervous system that plays a crucial role in muscle movement and cognitive functions such as memory and attention.
Dopamine
A neurotransmitter in the brain that plays a major role in reward-motivated behavior and other functions.
Serotonin
A neurotransmitter that has a significant impact on mood, emotion, and sleep.
GABA
Gamma-Aminobutyric Acid, a neurotransmitter in the brain that inhibits or reduces the activity of neurons.
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