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Middle School Life Science Flashcards: Fossil Diversity Patterns

Study Fossil Diversity Patterns 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

What does a rapid increase in the number of fossil species after a mass extinction most likely indicate?

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ANSWER

Adaptive radiation (rapid diversification into new niches). Survivors evolve rapidly to fill empty ecological roles.

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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 Fossil Diversity Patterns, 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 36Practice questions for this set
Fossil records show patterns of diversity over time, though they are incomplete. In a stack of layers (oldest to youngest), fossils are:
  • Layer 6 (oldest): 3 types (shell A, shell B, algae)
  • Layer 5: 3 types (shell A, shell B, algae)
  • Layer 4: 1 type (algae)
  • Layer 3: 1 type (algae)
  • Layer 2: 4 types (shell C, crab, fish, algae)
  • Layer 1 (youngest): 4 types (shell C, crab, fish, algae)
What evidence shows a change in diversity over time in this fossil record?
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