Examlex
Classification.The statements ask about events that have occurred during various time frames of the Earth's history.For each one,select the best choice from the following Periods during the Earth's history.
a.Quaternary
b.Cretaceous
c.Jurassic
d.Triassic
e.Cambrian
-trilobites evolved
Touch Discrimination
The ability to recognize and differentiate between various types of touch stimuli, such as textures or pressure.
Thermoreceptors
Sensory nerve endings under the skin that respond to changes in temperature at or near the skin and provide input to keep the body’s temperature at 98.6 degrees Fahrenheit.
Endorphins
Natural pain-relieving peptides produced by the body during exercise, excitement, pain, and sexual activity, known to induce feelings of pleasure or euphoria.
Cones
Cells in the eye's retina called photoreceptors are crucial for seeing colors and work optimally in well-lit conditions.
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