Log inSign up

Middle School Life Science Flashcards: Evaluate Population Explanations

Study Evaluate Population Explanations 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 relationship describes a predator-prey cycle when graphed over time?

Tap card or press Space to flip

ANSWER

Prey peaks first; predator peaks shortly after. Predators lag behind prey due to reproduction time.

1 / 96

Middle School Life Science: Ecosystems: Interactions, Energy, and Dynamics

You are hereEvaluate Population Explanations96 cards

All flashcards

96 cards

What this deck covers

This deck focuses on Evaluate Population Explanations, 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 41Practice questions for this set
A lake is monitored for 5 years. Two explanations are offered for a decline in small fish (minnows). Explanation 1: The minnow population declined because a new predator fish (bass) was introduced and ate more minnows. Explanation 2: The minnow population declined because a plant disease reduced aquatic plants, lowering shelter and food for minnows. Use the population evidence below to evaluate the explanations using evidence fit and completeness (how well each explanation accounts for all the data). Which explanation is best supported by the evidence? Population evidence (counts per survey):
  • Year 1: minnows 1200, bass 40, aquatic plant cover 80%
  • Year 2: minnows 1100, bass 45, aquatic plant cover 78%
  • Year 3: minnows 700, bass 90, aquatic plant cover 76%
  • Year 4: minnows 500, bass 130, aquatic plant cover 75%
  • Year 5: minnows 480, bass 140, aquatic plant cover 74%
Choose an answer

Keep your progress across every deck

Free account · cards you mark are saved to it