Using Robotic Probes to Fly by Other Planets Is Advantageous

question 54

Multiple Choice

Using robotic probes to fly by other planets is advantageous as compared to orbiting or landing probes on those planets because

• A) cameras work best at high altitudes.
• B) flybys are easier and cheaper.
• C) planetary atmospheres cause orbiters and rovers to burn up quickly.
• D) maintaining an orbit or landing requires too much energy.
• E) flyby probes return to Earth and return samples of distant objects.

---

Definitions:

Stimulus

Any occurrence or circumstance that prompts a reaction from a living being.

Acetylcholine

A neurotransmitter in both the peripheral nervous system (PNS) and central nervous system (CNS) in many organisms including humans.

Inhibitory Transmitter

A type of neurotransmitter that decreases the likelihood of the neuron it binds to firing an action potential.

Arousal

A physiological and psychological state of being awake or reactive to stimuli, often related to motivation and alertness.