Population Data and Biodiversity Decisions Worksheet
📝 Worksheet hard ⏱️ 22 minutes 8 problems
Population Data and Biodiversity Decisions Worksheet
Grade 7 Science LearnCrux.com
Name:
Date:
Directions
- Fill in each blank carefully.
- Circle or mark the best answer for each multiple-choice question.
- Match each prompt to the best option before writing your answer.
- Use the larger space to show your thinking on word problems.
1. A graph shows insect numbers falling after a dry season. A likely limiting factor is reduced __.
2. Which ecosystem is more likely to recover after one pollinator species declines?
3. Match the evidence to the strongest claim: fewer plants after drought
Match with:
Answer:
4. When a system has many species that fill different roles, its biodiversity is often more __.
5. Why can one population graph help explain change in another population?
6. Which action is most likely to support biodiversity?
7. Match the model to what it helps explain: food web
Match with:
Answer:
8. Why should conservation decisions consider both biodiversity and ecosystem services?
📋 Teacher Answer Key
1. water
2. an ecosystem with several pollinator species and plant species
3. herbivore populations may also decrease
4. stable
5. Connected populations depend on shared resources and food-web relationships, so a change in one can affect another
6. protecting varied habitats in the same region
7. how energy and matter move through connected organisms
8. Biodiversity helps ecosystems keep working, and ecosystem services are the benefits living systems provide to organisms and people