The organisms listed here live together in an ecosystem. Draw arrows to complete the food web that models how matter moves in the ecosystem among producers, consumers, and decomposers. In this food web, chipmunks eat grass and blueberries; bears eat chipmunks and blueberries.
Question 2
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Question 3
3.
Question 4
4.
In most ecosystems, the energy used by all the organisms comes from the Sun. Explain (in at least 2 sentences) how energy gets from the Sun to a second-level consumer (like a human).
Question 5
5.
In a pond behind the school, students observed several interactions. Read the notebook entries to find out what they observed. Then use the clues from their entries to help with the following questions.
Question 6
6.
Choose at least three organisms from the list above to construct a food chain. Make sure that you include a producer.
Question 7
7.
Construct a food web based on all the organisms observed. Label as specifically as you can which are producers, consumers, and decomposers.
Question 8
8.
You have learned that Earth’s four major systems interact. Describe an example of how the biosphere might be affected by a change in one of the other three systems (geosphere, hydrosphere, or atmosphere). The change can be natural or human-caused. Your response should be at least 3 sentences.
Question 9
9.
Question 10
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Question 11
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Question 12
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Question 13
13.
Drag & drop each of the organisms into their correct category: Producers, Consumers, or Decomposers.
Bacteria
Bears
Chipmunk
Grass
Blueberries
Producers
Consumers
Decomposers
Think about evidence you gathered about decomposition from the worm habitat/ecosystem and information you learned from reading and videos. Click all of the following statements that are considered True.
Decomposers break down organic material that provides nutrients for plants.
Organisms like fungi aid decomposition because they break down dead organisms.
Plants get energy that they need to live from decomposed materials.
Animals like wolves are decomposers because they eat other animals.
You’ve been developing a model that describes the movement of matter and energy among organisms in the environment. Select all of the items below that give organisms (living things) energy in an ecosystem.
Air
Sunlight
Food
Water
Tarantulas live in a desert ecosystem. These large spiders rest in their burrows all day. At night they come out to look for food, water, and mates. When day approaches, the tarantulas return to their burrows. Tarantulas are carnivores and need energy to move about at night. Select all of the following statements that are true.
Tarantulas don’t use energy from the Sun because they don’t eat when the Sun is out
Tarantulas don’t use energy from the Sun because they don’t eat plants
Tarantulas use energy from the Sun because they eat plant-eating insects.
Tarantulas use energy from the Sun because they get enough sunlight as the Sun is rising and they are moving back into their burrows.
What type of organism is missing from this food web?
Producers
Consumers
Decomposers
Carnivores
If the frog population suddenly increased, which organism would be most likely to decrease right away?
Owls
Snakes
Grass
Snails
A student said, “Plants don’t have energy. Only animals have energy. I know that because only animals move on their own.” Select each sentence that you agree with. Don't select any sentence you disagree with.
The student is right; only movement is evidence that energy is present.
The student is wrong; plants store energy from the Sun
The student is right; animals get food from plants, not energy
The student is wrong; plants provide energy to animals.
After learning about what plants and animals need to grow, a student said, “I know that plants need air and sunlight to live. Animals need air, too. So air and sunlight must be food for plants and animals.” Select all of the following that are true.
Plants get material for growth from the Sun and air; it’s their food.
Plants get energy from both the air and from the Sun.
Plants get new material for growth only from the air and water
Animals get material for growth from what they eat.
