Questions and Answers
How many accepted species of plants are there, with the majority producing seeds?
382,000
When did the first land plants appear?
450 million years ago
What is the branch of biology that focuses on the scientific study of plants?
Botany
What was the name of the kingdom created by Linnaeus for the plant kingdom?
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What is the main activity of green plants that supplies the energy for most of Earth's ecosystems?
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Which organisms form the clade Viridiplantae (green plants)?
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What is the primary source of energy for plants?
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What is the common factor among hornworts, liverworts, mosses, lycophytes, ferns, conifers, and flowering plants?
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What is the primary function of chloroplasts in plants?
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How many known species of plants produce seeds?
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