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Middle School Life Science Flashcards: Extinction And Appearance

Study Extinction And Appearance 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 indicates a species appeared (originated) in a rock sequence?

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ANSWER

Fossils first appear in a layer and are absent in all older layers. Shows the species didn't exist before this time.

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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 Extinction And Appearance, 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 49Practice questions for this set
Fossils provide evidence of extinction and appearance. A rock column has layers from oldest (Layer 1) to youngest (Layer 5). Fossils found:
  • Layer 1: Shellfish Z
  • Layer 2: Shellfish Z
  • Layer 3: Shellfish Z, Plant P
  • Layer 4: Plant P
  • Layer 5: Plant P A student says: "Shellfish Z went extinct right after Layer 2." Which evidence best evaluates the student's claim using the fossil layers?
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