Food Chain/Web
What do the arrows in a food chain or food web represent?
What is the direction of the flow of energy
Study the image on the screen. Fill in the table for organism 2 (image 2).
What is snake
True or false: matter CYCLES through the ecosystem
What is true
True or false: energy is cycled through the ecosystem
what is false
Earthworms are considered __ because they consume and recycle organic matter
what is decomposers
What is the role of a mushroom in a food web?
What is a decomposer
Study the image on the screen. Fill in the table for organism 4 (image 2).
What is grass
True or false: energy cycles through ecosystems because it returns to the sun
What is false
What is it is lost as heat
Grasses are considered __ because they make their own food via photosynthesis
What is producers
What is a role of a fox in a food web?
What is a secondary consumer
Study the image on the screen. Fill in the table for organism 5 (image 2).
What is Soil bacteria
What is the function of bacteria in the nitrogen cycle?
As you move upward, from level to level, in an energy pyramid, available energy __________.
What is decreases
What type of consumer would eat a hamburger with lettuce on it?
What is an omnivore
What is the role of a vulture in a food web?
What is a scavenger (decomposer)
**DOUBLE POINTS** What major group of organisms is missing from the food the image of the food web on the screen (image 3)?
What are decomposers
Matter is not ____ or _____
What is created or destroyed
Energy is NOT ____ or ____
what is created or destroyed
Organisms that eat other animals is called a(n) _______
What is a secondary consumer
For image 1: The grasshopper population within an ecosystem suddenly experiences a large decrease in numbers. How would a significant decrease in the grasshopper population affect the ecosystem?
Plants increase
Birds and snakes decrease
What organism can represent the missing group from the image on the screen (image 3)?
What is bacteria
Using the food web on the screen (image 2), describe the cycle of matter within an ecosystem
Cycle of matter: carbon is cycled when plants use the sun's energy to photosynthesize and make sugars for all other organisms to use for energy
Describe the flow of energy from the food web on the screen (image 2)
Energy flow: energy flows from the sun to the producers which make sugars that provide energy to all other organisms
What is another name for an organism that has a similar role to a decomposer? (Hint: think what are vultures?)
What is a scavenger