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____ modify the _____ sensitivity to different wavelengths of light.

Opsins; photopigments

What is a reason why animals with a lesion in the lateral hypothalamus eat so little?

They experience a decreased cortical response to the smell and sight of food

The ability to hear a note and identify it perfectly is called ______.

absolute pitch

Sexual differentiation begins with ______.

chromosomes

Sildenafil (Viagra) works by ____.

increasing the release of nitric oxide in the hypothalamus and penis

In a reflex arc, the coordination between contraction of certain muscles and relaxation of others is mediated by ____.

interneurons

The pituitary gland synthesizes and releases hormones _____.

into the bloodstream

The most common form of color deficiency is due to_____.

long and medium wavelength cones making the same photopigment

What kind of deafness is the result of damage to the cochlea or the hair cells?

nerve damage

According to the trichromatic theory of color vision ______.

our perception of color depends on the relative activity of three types of cones

Suppose you fell into a cave and lost your watch. Without any time cues, your circadian rhythm would ____.

remain relatively stable

A decrease in the amount of sleep most likely to affect the performance of migratory bird during_____.

seasons other than migration

Pregnant women often experience nausea because of the heightened activity of the ____ receptor.

serotonin 3

What kind of receptors detect pain, warmth, and cold?

somatosensory

The ability to take someone else's perspective depends on an area where the______.

temporal cortex meets the parietal cortex


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