Ecosystems
_____________ ecosystems are land ecosystems.
Terrestrial
________________ make their own food.
Plants
All food chains start with the __________
sun
Which land ecosystem has dry climates and hot temperatures?
Tell us the two types of aquatic ecosystems.
Freshwater and saltwater.
_______________ ecosystems are water ecosystems.
Aquatic
According to how they obtain food, living things in ecosystems and p__________ and c___________
producers / consumers
To show more than one food chain in an ecosystem we use food _________
webs.
Tell us the ecosystem where grass covers the ground, herbivores feed on this grass, and carnivores feed on this herbivores.
Grassland
True or false? A freshwater ecosystem has both standing and flowing water
true
All of the living things made up in an ecosystem.
biotic factors
_______________ are consumers. They feed on other living things.
Animals
This is a food chain that includes grass, a grasshopper, and a bird.
grass → grasshopper → bird
How is the grass in this food chain best described?
A. It is a producer, because it makes its own food.
B. It is a producer, because it is eaten by consumers.
C. It is a consumer, because it gets energy from producers.
D. It is a decomposer, because if breaks down sunlight.
A
Tell us the four types of terrestrial ecosystems.
Forests, grasslands, deserts and polar regions.
Tell us the ecosystems made up of rivers, lakes and streams.
Name 3 examples of abiotic factors
rocks, soil, clouds, air, etc
Herbivores are _____________ consumers. They only feed on plants.
primary consumers
Arrows in a food chain show the direction that the ____ flows.
energy
This type of forest loses it's leaves in the autumn
deciduous
This ecosystem has a brackish water
an estuary
What would most likely happen if all of the decomposers in an ecosystem were removed?
A. The animals in the ecosystem would die because of the spread of disease.
B. The plants in the ecosystem would eventually die because of a lack of nutrients in the soil
C. The plants in the ecosystem would begin to die out because of a decrease in available water.
D. The animals in the ecosystem would eat other types of food because of a decrease in producers.
B
________________ are secondary consumers.
Carnivores
Tell an example of food chain:
Open answer (grass --> rabbit --> fox)
This ecosystem is the most biodiverse.
rainforest
Which has the greatest effect on the amount of salt in a salt marsh?
A. the number of animals living in the marsh
B. the closeness of the marsh to the ocean
C. the depth of the water in the marsh
D. the temperature of the water in the marsh
B