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Exam 2: The Biology of Behavior

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Question 141

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In the brain, learning occurs as experience strengthens certain connections in cell work groups called

A) action potentials.
B) neural networks.
C) endocrine systems.
D) dendrites.

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Question 142

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Genes direct our physical development by synthesizing

A) hormones.
B) proteins.
C) DNA.
D) chromosomes.

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Question 143

Multiple Choice

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Following a head injury, a person has ongoing difficulties staying awake. Most likely, the damage occurred to the

The minimum level of stimulation required to trigger a neural impulse is called the

Which of the following is typically controlled by the right hemisphere?

During open brain surgery, Adam's left ankle twitched whenever the surgeon electrically stimulated a specific area within Adam's

Oxytocin is secreted by the

The unique genetically influenced traits of children evoke predictable responses from their caregivers. This best illustrates the ________ of nature and nurture.

Aaron consistently exhibits a knee-jerk response without having any sensations of the taps on his knees. Aaron's experience is most indicative of a

Infant rats deprived of their mothers' normal licking had more ________ that block access to the "on" switch for developing the brain's stress hormone receptors.

Physical exercise and exposure to stimulating environments are most likely to promote

Depending on environmental conditions, specific genes can be either

After Kato's serious motorcycle accident, doctors detected damage to his cerebellum. Kato is most likely to have difficulty

Neurons are surrounded by ________, which guide neural connections and clean up after neurons send messages to one another.

After he suffered a stroke, Mr. Santore's physical coordination skills and responsiveness to sensory stimulation quickly returned to normal. Unfortunately, however, he could no longer figure out how to find his way around his neighborhood. It is most likely that Mr. Santore suffered damage to his

The longest part of a motor neuron is likely to be the

Dmitry Belyaev and Lyudmila Trut successfully domesticated wild foxes by means of

The two divisions of the peripheral nervous system are the