Science, Life: Chapter 3- How does energy move in an ecosystem?
Study Guide
•
Which of these is an example of a consumer in an ecosystem? (a bird eating a worm or a
plant using photosynthesis to make food)
•
All living things need ______________ to survive.
•
Producers use energy from sunlight to make their own food.
•
Plants are called producers because they make their own food.
•
Animals and some other organisms cannot produce their own food. They are called
consumers. They get food by consuming, or eating, other organisms.
•
Plants are the source of most energy in an ecosystem.
•
The reason that plants are green is that they contain chlorophyll. Chlorophyll is the
green material in plants’ leaves that absorbs sunlight to make sugars.
•
All animals need the energy in food to live and grow.
•
Herbivores get their energy from eating plants.
•
Carnivores get all their energy from eating only other animals.
•
Omnivores eat plants and animals.
•
Decomposers feed best on decaying plants and animals.
•
A food chain is a process by which energy passes from one living thing to another.
•
The green material in plants that absorbs sunlight is chlorophyll.
•
A food web shows how energy moves among many producers and consumers in an
ecosystem.
•
Green plants make food from the energy from sunlight in the process of photosynthesis.
Draw a food web using the following organisms: duck, crayfish, large-mouth bass,
snapping turtle, cattail, snail, minnow, algae, leech, yellow perch.