Balance for a Main Sequence Star Is Achieved When___________

question 15

Multiple Choice

Balance for a main sequence star is achieved when___________ .

• A) nuclear fusion and fission occur at the same rate
• B) temperature matches the rate of nuclear fusion
• C) gravitational collapse matches gas pressure
• D) gas pressure matches temperature
• E) all of the above

---

Definitions:

Neurotransmitters

Chemical substances in the brain that transmit signals from one neuron to another, playing a key role in the function of the nervous system.

Synaptic Vesicles

Tiny sacs within a synapse that release neurotransmitters, enabling neuron communication.

Receptor Sites

Specific areas on the surface of cells or within cells that are sensitive to certain substances, allowing for communication between cells or systems.

Serotonin

A neurotransmitter involved in emotional arousal and sleep; deficiencies of serotonin have been linked to eating disorders, alcoholism, depression, aggression, and insomnia.