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Neurons are responsible for

Which of the following is the major excitatory neurotransmitter in the brain, oversupply of which can lead to migraines or seizures?

Dr. Wakes conducted a study on energy drinks and performance with runners.  She selected participants who reported similar average running speeds.  For the experiment, she had half of the participants drink an energy drink before running 3 miles and half the participants drink water. She measured their speed. What is the independent variable?

The substantia nigra and striatum are both part of which of the following brain areas invovled in the control of movement?

_____ is the neurotransmitter linked to Schizophrenia that influences movement and pleasure.

Amnesia may result from damage to which area of the brain?

Matt was camping in a cabin in the woods with his family. He heard a noise in the middle of the night and walked into kitchen only to come face-to-face with a bear. Which part of his brain regulated his feelings of fear?

Somatic cells in different tissues of the same organism are different because they

Sympatric speciationI. is common in animals but rare in plants. II. initially involves a physical geographic separation of individuals from a single population into two separate populations.III. can result in the formation of a new species within a few generations.

A lake is likely to be eutrophic if it is