Worksheets4.3 Ecosystems
Total questions: 18
Worksheet time: 12mins
What is a food web?
A diagram showing how energy flows through an ecosystem
A type of spider web
A map of the stars
A network of roads
Who are the producers in a food web?
Hawks and lions
Grass, trees, and shrubs
Snakes and shrews
Squirrels and rabbits
What do primary consumers eat?
Other carnivores
Producers
Tertiary consumers
Rocks and minerals
Which of the following is a secondary consumer?
Grasshopper
Snake
Tree
Grass
What do tertiary consumers eat?
Primary consumers
Secondary consumers
Producers
Decomposers
What is the role of herbivores in a food web?
They produce energy through photosynthesis
They eat producers
They eat secondary consumers
They decompose dead organisms
What happens if the population of wolves decreases in an ecosystem?
The grass population decreases
The deer population may increase
The ecosystem collapses immediately
The producers become carnivores
What is interdependence in a food web?
Each level of consumer depends on the previous level for food
All animals eat the same food
Only producers are important
Consumers do not affect each other
What might happen if deer overconsume grass in an ecosystem?
The grass will grow more
The wolves will have more food
The grass will have less room to grow
The ecosystem will become a desert
What is an example of a tertiary consumer?
Rabbit
Hawk
Grasshopper
Squirrel
What will happen if deer is missing in the food chain given above? Choose 2 correct options:
The population of tiger decreases
population of grass increases
The population of tiger increases
The population of grass decreases
What do lizards eat?
mice
grasshoppers
hawks
grass
Which of these organisms is considered to be a producer?
grass
gazelle
fox
coyote
Marco caught a blue crab while he was at the beach with his family. He wanted to take it home and place it in his pond, but was told the crab would not survive. What is the MOST likely reason the crab needs the ocean to survive?
There is more sunlight.
There are fewer predators.
The crab needs less oxygen.
The crab needs the salt water.
