The H-R Diagram of a Cluster Shows That the Least

question 8

Multiple Choice

The H-R diagram of a cluster shows that the least massive stars lie above the main sequence (that is they are more luminous than main sequence stars) .What can we conclude about the cluster?

• A)It has an unusual chemical composition
• B)Its least massive stars are more massive than the stars near the Sun
• C)It is quite young
• D)Its stars have large magnetic fields

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Definitions:

Sodium/Potassium Pumps

A type of active transport mechanism that moves sodium ions out of and potassium ions into cells, essential for maintaining cellular function and homeostasis.

Receptor Sites

Specific locations on the surface of a cell or within a cell where molecules such as hormones, neurotransmitters, or drugs can bind to elicit a physiological response.

Ions

Atoms or molecules with a net electric charge due to the loss or gain of one or more electrons.

Neurotransmitters

Chemicals released by neurons that transmit signals across a chemical synapse, from one neuron to another target neuron, muscle cell, or gland cell.