WorksheetsEcosystems Cumulative Assessment Study Guide
Total questions: 20
Worksheet time: 10mins
If the horseshoe crab population decreased...
the grackle population will decrease
the loggerhead turtle population would increase
the striped bass population would increase
the razor clam population would decrease
Wetlands like marshes and estuaries are extremely important because they...
are home to monkey and bob cat populations
remove pollutants from the water
increase inland temperatures
provide carbon dioxide for humans to breathe
When ponds are overgrown with algae, it is often because humans use too much...
sunlight for electrical energy
paper
wood for heating their homes
fertilizer to grow crops
The living organisms that depend on directly on the sun are...
carnivores
herbivores
consumers
producers
Which of the following would most likely be found in the American Prairie?
frogs, algae, sea turtles
prairie dogs, bison, and coyote
giraffe, elephants, zebras
sloths, anaconda, jaguars
Whales, dolphins, sharks, and phytoplankton can be found in...
a marine ecosystem
a pond ecosystem
a salt marsh
a lake
If the plankton population decreased...
the grackle population would increase
the razor clam population would increase
all populations in the food web would increase eventually
all populations in the food web would decrease eventually
Reducing the producer population in an ecosystem will ensure that there is....
decreased carbon dioxide for all consumers
less energy for all consumers
more energy for all consumers
increased oxygen for all consumers
If the horseshoe crab population increased...
the striped bass would decrease
the loggerhead turtle population would decrease
the razor clam population would decrease
the razor clam population would increas
Algae, tadpoles, fish, amphibians, turtles and ducks can be found in...
a pond ecosystem
a grassland ecosytem
a deciduous forest ecosystem
a tropical rainforest ecosystem
Which of these has the greatest annual (yearly) precipitation?
tropical rainforests
deciduous forests
grasslands
polar zones
Decomposers include...
mushrooms, worms, bacteria, and algae
mushrooms, bacteria, fungi, and worms
mushrooms, worms, fungi and grass
mushrooms, worms, bacteria, and lizards
If you wish to decrease predator populations, you should...
increase the number of humans living in the area
decrease the prey populations they like to hunt
increase the prey populations they like to hunti
increase the habitat predator populations inhabit
Leaf → Cricket → Frog → Garter snake → Skunk
if you want to decrease the number of crickets, you should...
increase the amount of garter snakes
increase the frog population
increase the leaf population
increase the amount of sunlight
an aquatic ecosystem that includes freshwater and saltwater is called...
estuary
pond
lake
ocean
Animals like deer and coyote are often seen inside cities because of...
an increase in precipitation
an increase in forests
their habitats are decreasing
their habitats are increasing
Which of the following ecosystems has the highest annual precipitation?
African Grassland
Praire
Deciduous Forest
Tropical Rainforest
Producers are extra special organisms because they....
eat only plants
obtain nutrients by eating other organisms
make their own food through the process of photosynthesis
break down dead organisms into usable organisms for the soil
When pollutants enter wetland ecosystems after a heavy rain, it's usually because...
plants add chemicals to the wetlands
animals carry pollutants into the wetlands
humans reduce the amount of chemicals they use
humans use too many chemicals on their grass and crops.
An organism that eats the remains of dead animals after the predators have finished eating are called...
herbivore
scavenger
predator
producer
