to eat or not to eat
describes a single feeding relationship among a few organisms.
food chain
________ are consumers that eat meat and are higher on the food chain.
second-level consumers/ carnivores
Which choice show the correct order of a food chain? a. sun - plant - rabbit - wolf
b. wolf - rabbit - plant - sun
a. sun - plant - rabbit - wolf
What is a system?
a. a collection of interacting parts
b. a single part
a. a collection of interacting parts
What is another name for a terrestrial ecosystem?
a land ecosystem
is a more complex system showing all of the feeding relationships in an ecosystem.
food web
_____ eat dead and decaying plants and animals.
decomposers
Earthworms are decomposers because...
they eat dead and decaying organisms
Which part of Earth are included in the Geosphere?
a. living organisms
b. core, mantle and crust of the Earth
c. the air
b. core, mantle and crust of the Earth
What is another name for a water ecosystem?
an aquatic ecosystem
Organisms that make their own food are called...
producers
____ is a community of organisms interacting with each other and the non-living environment.
an ecosystem
A tree is a ____ because it makes its own food.
producer
Which parts of Earth are included in the Atmosphere?
a. air
b. water
c. land
a. air
What do all ecosystems have in common?
a. same location
b. same plants and animals
c. food webs
d. same temperature
c. food webs
_____ get their energy by eating plants or other animals.
consumers
Which choice names an abiotic (non-living) part of an ecosystem?
water
rabbits
grass
water
A rabbit is a herbivore which makes it a __________.
a. first-level consumer
b. second-level consumer
a. first-level consumer
Which parts of the Earth are included in the Hydrosphere?
a. air
b. water
c. land
b. water
Which choice is an example of a producer in an aquatic ecosystem?
a. phytoplankton
b. grass
c. flowers
a. phytoplankton
____ are consumers that eat plants and are lower on the food chain.
first-level consumers/ herbivores
What would happen to the population of rabbits if the population of grass decreased?
a. there would be more rabbits
b. there would be less rabbits
b. there would be less rabbits
(because there would not be enough food for them.)
A wolf is a carnivore which makes it a _________.
a. first-level consumer
b. second-level consumer
b. second-level consumer
The Biosphere includes...
a. all organisms of the Earth
b. all of the water of the Earth
c. all of the land forms on the Earth
a. all organisms of the Earth
Which choice is an example of a producer in a terrestrial ecosystem?
a. phytoplankton
b. grass
c. cows
b. grass