Ecosystems Study Guide

Food Chains, Food Webs and Adaptations Review Questions
For your Test on Monday, October 18th, you must be able to respond to questions about the
following concepts:
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2.
3.
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9.
In a food chain, what is the organism that extracts energy from sunlight called?
What is the second organism in a food chain called?
Name three kinds of organisms which are decomposers in the soil.
What do decomposers feed on?
Do decomposers help to pass energy or nutrients to producers?
Describe three ways in which energy is lost from a food chain?
Why do the numbers of organisms in a population decrease as you move up a food chain?
What is made when the food chains in a habitat are linked together?
What is formed when a community of living things interacts with the non-living part of the
environment?
10. How do changes in predator and prey populations affect each other?
11. What is an adaptation for survival and why is it important?
12. Name three animal adaptations and describe how each is helps the animal to survive in its
environment.
13. Name three plant adaptations and describe how each helps the plant to survive in its
environment.
14. Explain the structure of an ecological pyramid. Which organisms are at the base or first level?
Which organisms are second? Third?
15. What information is shown in a
a. Pyramid of numbers?
b. Pyramid of biomass?
c. Pyramid of Energy?
16. You will also need to demonstrate the following science skills:
a. Interpreting Graphs
b. Understanding experiment design
c. Writing a hypothesis and/or a conclusion
d. Explaining variables and controls in an experiment.
Be sure to check out the M3 Science Website for review materials, websites, diagrams, vocabulary cards, etc.
http://teachers.moed.bm/leone.samuels/default.aspx
Saturday Science School!!!! Saturday, October 16th 9:00-11:00 a.m. Be There or Be SQUARE!