Food Chains/Webs
What information does a food chain represent about an ecosystem? 5.L.2.1
The flow of energy from the sun, to producers, to a series of consumers.
Both forest and grassland are what type of ecosystems? 5.L.2.1
Both are terrestrial (land-based) ecosystems.
True or False: Decomposers feed on decaying organisms and wastes for energy.5.L.2.2
True
These types of organisms are everything that is alive in an ecosystem.
Biotic
What information does a food chain represent about an ecosystem? 5.L.2.1
The flow of energy through organisms (an ecosystem).
True or False: Oceans include more diverse organisms (plants and animals) than ponds.
True
Are plants and algae best classified as producers, consumers or decomposers in an aquatic (water-based) ecosystem? 5.L.2.2
Plants and algae are best classified as producers.
How are estuaries different from ponds, lakes, and oceans? 5.L.2.1
Estuaries contain a mixture of both salt water and freshwater
What is the purpose of a food web? 5.L.2.1
It shows overlapping/mulitple food chains and all the paths energy can take can take in an ecosystem.
Some aquatic (water-based) ecosystems are a mixture of freshwater and salty water. They are rich in nutrients and provide a good environment for the offspring of many fish and shellfish.Which ecosystem is best described by the characteristics above? 5.L.2.1
An estuary ecosystem
How are mushrooms, bacteria, and worms best classified in a terrestrial (land-based) ecosystem? 5.L.2.2
They are best classified as decomposers.
Rabbits eat field grains such as wheat and oats. Great horned owls eat rabbits. Which would most likely cause the population of great horned owls to decrease (get smaller)? 5.L.2.3
A decrease (less) in the number of rabbits
Write what type of organism each of the following is in this food chain 5.L.2.2 :
shrub> caterpillar >crow
Producer --> Consumer --> Consumer
What is a difference between forest and grassland ecosystems? 5.L.2.1
They have temperatures that vary based on their locations on Earth.
Bison, prairie dogs, and grasshoppers live in an area with fertile soil and tall grasses. In which ecosystem to they live? 5.L.2.1
Grasslands
In a grassland ecosystem, mice and rabbits eat plants. Hawks eat mice and rabbits. Suppose a disease kills many of the rabbits in the grassland. What would the hawk eat more of? 5.L.2.3
The hawks will eat more mice.
What are the three different types of consumers?
Primary, secondary, tertiary
Salt water oceans contain many different types of ecosystems based on conditions such as...
Producers and consumers both use what type of matter for food and energy?
Organic
When animals breathe, they give off a gas called carbon dioxide. How does carbon dioxide cycle through an ecosystem? 5.L.2.2
Plants take in carbon dioxide. It is used for the process of photosynthesis.