The Following Questions Refer to the H-R Diagram Below That

question 9

Multiple Choice

The following questions refer to the H-R diagram below that shows the life track of a 1-solar-mass star,with various stages labeled with Roman numerals.

-In the end,the remaining core of this star will be left behind as

• A)a white dwarf made primarily of carbon and oxygen.
• B)a white dwarf made primarily of silicon and iron.
• C)a neutron star.
• D)a black hole.
• E)a supernova.

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Definitions:

Genes

DNA segments that serve as the key functional units in hereditary transmission, determining aspects of an individual's physical and possibly behavioral traits.

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby and removing waste products.

Nutrients

Essential substances obtained from food that are necessary for the body to grow, maintain health, and carry out its functions.

Oxygen

A chemical element with symbol O and atomic number 8, essential for the respiration of most living organisms and for combustion.