Which of the Following Rock Types Is NOT Characteristic of Volcanic

question 150

Multiple Choice

Which of the following rock types is NOT characteristic of volcanic domes?

• A) glassy volcanic rocks that are unstable over time
• B) vesicular basalt with very large holes from dangerous gas
• C) volcanic breccia formed by fracturing of the outer part of the dome
• D) mixtures of pieces of the dome and ash from dome collapse

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Definitions:

Microtubules

Cylindrical structures that are part of the cytoskeleton in cells, playing roles in cell shape, division, and transport mechanisms.

Spindle

A cellular structure involved in cell division; it is formed of microtubules and proteins and is responsible for separating chromosomes into daughter cells.

Centrioles

Cylindrical structures found in most eukaryotic cells that play a critical role in cell division by helping to organize the mitotic spindle.

Microtubules

Cylindrical structures made of tubulin proteins that are part of the cytoskeleton in all eukaryotic cells, involved in cell shape, division, and transport mechanisms.