Overall, Multiple Star Systems in Our Galaxy

question 42

Multiple Choice

Overall, multiple star systems in our galaxy

• A) are extremely rare, making up less than 1% of the total
• B) are very common, making up about 60% of the total
• C) are fairly common, making up around 30% of the total
• D) do not exist

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Definitions:

Penfield Map

A representation of the motor cortex and sensory cortex in the human brain, illustrating the correspondence between body parts and their neurological representation, based on Wilder Penfield's research.

Speech Area

Regions in the brain, primarily located in the left hemisphere, involved in the processing and production of language.

Electrical Stimulation

A therapeutic treatment that uses electrical current to cause a single muscle or a group of muscles to contract, thereby improving muscle strength, pain relief, and repairing tissue.

Echolocation

The process of using sound waves and echoes to determine where objects are in space. It is used by animals like bats and dolphins to navigate and hunt.