Traits Are Critical in the Study of Phylogeny Because

question 14

Multiple Choice

Traits are critical in the study of phylogeny because

• A)a phylogenetic tree is a hypothesis about evolutionary relationships.
• B)we use observations of traits to infer patterns of ancestry and descent among populations.
• C)by mapping individual traits onto a phylogeny we have already created, we can study the sequence and timing of evolutionary events.
• D)A and C
• E)B and C

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Definitions:

Mechanoreceptors

Sensory receptors that respond to mechanical pressure or distortion, involved in sensations such as touch, pressure, and sound.

Nociceptors

Specialized sensory neurons that respond to damaging or potentially damaging stimuli by sending signals to the spinal cord and brain.

Thermoreceptors

Sensory receptors that respond to changes in temperature.

Mechanoreceptors

Sensory receptors responsible for detecting mechanical pressure or distortion, playing critical roles in touch and auditory systems.