During the Main Sequence Lifetime of a Star of Any

question 41

Multiple Choice

During the main sequence lifetime of a star of any mass, the core of the star will be composed mainly of ____.

• A) hydrogen
• B) helium
• C) carbon
• D) hydrogen and helium
• E) helium and carbon

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Definitions:

23rd Pair

Refers to the pair of chromosomes in humans that determines the biological sex of an individual; XX for female and XY for male.

Chromosomal Contribution

The genetic material that is passed from parents to offspring through reproduction, influencing the traits and characteristics of the offspring.

Gene Variation

Refers to the differences in the sequences of DNA among individuals, which contribute to the biological diversity seen within species.

Prenatal Sex Selection

The practice of using medical techniques to choose the sex of an offspring before birth.