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Middle School Life Science Flashcards: Natural Selection Effects

Study Natural Selection Effects in Middle School Life Science with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Which evidence best supports natural selection: a trait becomes more common after a new predator arrives?

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ANSWER

A trait becomes more common after a new predator arrives. Shows selective advantage against new predation pressure.

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Middle School Life Science: Biological Evolution: Unity and Diversity

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What this deck covers

This deck focuses on Natural Selection Effects, giving you a quick way to review the definitions, rules, and examples that matter most for Middle School Life Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 43Practice questions for this set
A student writes: "After a drought, the plants evolved deeper roots so they could reach water." The class collected data from a plant population that varies in root depth: shallow vs. deep. During drought years, plants with deep roots produced an average of 60 seeds each, while shallow-root plants produced an average of 10 seeds each. Over 5 generations, the percent of deep-root plants increased from 40% to 75%. Which claim about natural selection is incorrect in the student's statement when compared to the evidence? (Natural selection affects populations, not individuals.)
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