Binary Systems with Pairs of Stars Orbiting Each Other Are

question 63

Multiple Choice

Binary systems with pairs of stars orbiting each other are ____.

• A) common, and important for some types of stellar evolution
• B) common, but not important for stellar evolution
• C) uncommon, but important for some types of stellar evolution
• D) uncommon, but not important for stellar evolution
• E) very rare, but important for some types of stellar evolution

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Definitions:

Proteins

Large biomolecules composed of one or more chains of amino acids, which perform a vast array of functions within organisms.

Cytoplasm

The plasma membrane and cell contents with the exception of the nucleus.

Nucleus

The membrane-bound organelle in eukaryotic cells that contains most of the cell's genetic material.

Electron Micrograph

A photograph or image obtained by using an electron microscope, which uses a beam of electrons to create an image of the specimen.