Do Now Nervous System and Neuron 2

Which scenario best exemplifies Charles Darwin’s theory of natural selection?

• Aaron has larger muscles than Earl because Aaron lifts weights and Earl does not.

• A natural disaster wipes out all of the living creatures on a particular island.

• An ape learns how to use a new tool by observing another ape use that tool.

• A baby spreads out its toes in response to having its foot stroked.

• A mutation in a species of lizards that allows them to better blend into their surroundings leads to greater survival and more offspring possessing this mutation in a later generation.

The division of the nervous system that most directly allows voluntary muscle movement is the

• midbrain

• forebrain

• sympathetic

• parasympathetic

• somatic

Dopamine, norepinephrine, and acetylcholine are all

• hormones excreted by the endocrine glands

• neurotransmitters that excite or inhibit a neural signal across a synapse

• secretions of the exocrine glands

• drugs used in the therapeutic treatment of memory disorders

• enzymes involved with the degradation of interneuron signals

Joel’s pupils become dilated, his digestion is reduced, and his skin becomes cold. Which system is controlling his bodily changes?

• Sympathetic

• Parasympathetic

• Central

• Somatic

• Endocrine

The process by which neurotransmitters are reabsorbed into the neuron after it fires is called

• depolarization

• lateral inhibition

• long-term potentiation

• reuptake

• synaptic transmission