An H-R Diagram Plots the Luminosity of Stars Against Their

question 13

Multiple Choice

An H-R Diagram plots the luminosity of stars against their:

• A) mass
• B) diameter
• C) surface temperature
• D) age
• E) location in the sky

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Definitions:

Pith

The soft, spongy central cylinder of plant stems, providing structural support and storage of nutrients.

Photosynthetic Cells

Cells that contain chlorophyll and can convert carbon dioxide and water into glucose and oxygen, using sunlight.

Mineral Ions

Charged particles from minerals that plants absorb from the soil, which are crucial for their growth and development.

Sieve Elements

Specialized cells located in the phloem of vascular plants, responsible for assisting in the movement of sugars and nutrients.