The Rings of Uranus and Neptune Are Found

question 105

Multiple Choice

The rings of Uranus and Neptune are found:

• A)by the Hubble Space Telescope.
• B)above their equators.
• C)in the ecliptic plane.
• D)outside the Roche limit.
• E)all of the above.

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Definitions:

All-or-None Response

A principle stating that the strength of a response of a nerve or muscle fiber is not dependent on the strength of the stimulus.

Excitatory Signals

Electrical or chemical signals that increase the likelihood of a neuron firing, promoting neural activity.

Action Potential

A temporary shift in the electrical charge of a neuron's membrane, leading to the transmission of a nerve impulse.

Threshold

The level of stimulation required to trigger a neural impulse.