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WorksheetsEcosystems Review
Total questions: 44
Worksheet time: 22mins
What is a "population," as the word is used in biological science?
All species with members living in certain kind of environment.
All members of a single species living in a particular area.
The members of all species living in a particular area.
A species with members living in just one kind of environment.
Which sentence is the BEST description of a biological community?
A community provides shelter for one type of organism.
A community is made up of all types of organisms in an area.
A community is made up of one type of organism.
A community provides food for only one type of organism.
All of the animals of a single species, living in a single area, make up a -
colony.
kingdom.
menagerie.
population.
The students were given pictures of wooded areas. The directions were to identify examples of biotic factors in the pictures. Which list contains correctly identified biotic factors?
shelter, food sources, water
soil, trees, sunlight
soil, food sources, trees
shelter, water, soil
During a class hike on a nature trail, the students were told to identify examples of abiotic factors. Which list contains correctly identified abiotic factors?
temperature and sunlight conditions
food sources and green plants
soil and sunlight conditions
soil and water source
During a class visit to the beach, students were told to identify examples of abiotic factors at the beach. Which list contains correctly identified abiotic factors?
sea grass and crabs
sand and seaweed
crabs, seaweed, and saltwater
sand, saltwater, and sunlight conditions
Which of these is an example of what biologists call a population?
All of the white-tailed deer living in all forests.
All of the white-tailed deer living in one forest.
All of the various deer species living in the world.
All of the mammal species living in all forests.
Before a school field trip to a nearby beach, your teacher tells you that there are many biotic and abiotic things that you can find at the beach. He asks you to predict some of the biotic things you may find. The list you could make includes —
shells, sea oats, a dead fish, and some jellyfish remains.
stones, sand dollars, driftwood, and empty aluminum cans.
shells, sand, jellyfish remains, driftwood, stones, and crabs.
sand, empty aluminum cans, and stones.
Biotic factors are -
non-living components of an ecosystem.
living components of an ecosystem.
plants and vegetation components of an ecosystem.
animal components of an ecosystem.
Ant ant hill represents a -
predator.
community.
population.
producer.
Abiotic factors in an ecosystem are -
consumers.
moving.
nonliving.
poisonous.
A community of plants and animals that interact, feed, and reproduce in the same environment is called a/an -
habitat.
organism.
population.
ecosystem.
The parts of the ecosystem that are NOT living are called -
abiotic.
seismic.
systematic.
trophic.
Very rich soils, seasonal drought, occasional fires, grazing by large mammals, and a large span of temperatures over the year, characterize what terrestrial ecosystem?
desert
forest
saltwater
grassland
Ecosystems are a community of animals and plants interacting with their environment. What term applies to ecosystems of forests and grasslands?
terrestrial
aquatic
abiotic
biotic
Aquatic ecosystems would include which places?
forest, woods, grasslands
deserts, plains, valleys
oceans, lakes, and saltwater marshes
cities, towns, suburbs
What is one of the most distinguishing abiotic characteristic of an ocean?
large types of fish
plant types like seaweed
salinity of water
shells and small sea creatures
Animals such as black bears, white-tailed deer, and red squirrels are found in a forest ecosystem. These animals are part of an ecosystem’s _______________factors.
biotic
abiotic
terrestrial
aquatic
Which statement best explains why green marine algae grows most often in the top 100 meters of the ocean?
Algae have no roots to anchor them to the ocean floor.
Algae can live only where there is light.
The pressure is too great for algae to survive below 100 meters.
If algae lived below 100 meters, they would be eaten by animals.
Which plant is found in the desert?
banana tree
cactus
oak tree
fir tree
An animal that eats both meat and plants is called a/an ―
herbivore.
scavenger.
carnivore.
omnivore.
Energy may pass directly from producers to ―
carnivores.
herbivores.
producers.
predators
What role do most fungi fill in a food chain or pyramid?
consumers
decomposers
producers
transferrers
Where is the greatest amount of energy found in a community of organisms?
consumers
decomposers
producers
predators
Which of the following is the best example of a parasitic relationship?
a deer tick living on a dog
a badger following a honeyguide bird to a beehive, then both animals eating the honey
an egret, eating insects, near the mouth of an herbivore
a barnacle living on a whale
Which list below correctly organizes the food chain at a beach in sequential order?
snakes, hawks, grass, and grasshoppers
grasshoppers, snakes, hawks, and grass
green algae, small sand crustaceans, seagulls, hawks
snakes, grass, grasshoppers, and hawks
A rabbit is caught and eaten by an owl. What is the rabbit called?
the predator
the prey
the producer
the herbivore
A deer is caught and eaten by a wolf. What is the wolf called?
the predator
the prey
the producer
the herbivore
Prey are animals that -
eat other animals.
are eaten by predators.
eat both animals and plants.
are eaten by producers.
An organism or group of cells that serves as a home or a food source for a parasite is called a —
host.
producer.
predator.
consumer.
An organism that spends most of its life on a living host is called a —
fungus.
consumer.
parasite.
predator.
Which of the following is a correct food chain?
caterpillars and grasshoppers → birds → grass and trees
grass and trees → caterpillars and grasshoppers → birds
birds → grass and trees → caterpillars and grasshoppers
grass → trees → caterpillars → grasshoppers → birds
What do the arrows in this diagram show?
the flow of energy
the flow of oxygen
who eats whom
the water cycle
What determines the number of organisms that can survive in a community?
the legal limits determined by nature
the amount of food, water, and shelter
the changing seasons of the year
the predator/prey relationship
Within an ocean environment, many food chains exist in which animals eat plants, and are in turn, eaten by larger organisms. What is an example of a food chain within this environment?
algae → plankton → whale
plankton → whale → shark
algae → sea snail → octopus
sea snail → whale → octopus
Using the graph, which statement best summarizes the relationship of the two populations over the entire period of time?
As the deer population increased, the wolf population always decreased.
The wolf population followed the deer population with a 4-year delay.
There was no relationship.
What should an ideal insecticide do?
break down into another substance that will kill even more insects
keep killing insects for a very long time
kill only the particular insects it is supposed to kill and then break down
kill as many different types of insects as possible
Bats can be found making their homes in eaves and attics of houses. This change in habitat can be attributed to humans limiting the bats’ —
food supply.
available shelter.
water supply.
hunting area.
What would happen to the rabbits living in a grassland, if all their predators were removed?
The number of rabbits would increase.
The number of rabbits would stay about the same.
The number of rabbits would start to decrease.
The rabbits would leave the grassland.
In a freshwater ecosystem, the temperature for a given year was below average. This lower temperature might limit —
food for the fish population.
the level of oxygen.
the water level.
the predator/prey relationship.
A small coastal town allowed a large landfill to be built close to the ocean. Regulations were NOT closely monitored. How might this affect the ecosystem?
The fish population might increase.
The fish population might decrease.
New species of fish would emerge.
Probably no effect on the ecosystem would be noticed.
Deer can be a driving hazard in South Carolina. During early morning and early evening hours drivers need to be cautious. Even with these noted cautions, there has been a rise in deer related automobile accidents. What can partially account for this rise?
Humans are becoming worse drivers.
Deer have become slower and cannot not get out of the way.
Humans have built roads that intrude into the deer’s habitats.
Deer cannot see or hear well and do not see the dangerous traffic.
In South Carolina there are laws that prevent the killing of songbirds. What is a major reason for this law?
Songbirds help entertain humans with their songs.
Songbirds are becoming extinct.
Songbirds are not a good source for food and killing them would be a waste.
Songbirds act as a natural control to insect overpopulation.
Snowy owls live in the scarcely populated Tundra. This ecosystem is also home to the owl’s main source of food, a small rodent called a lemming. When the lemmings become scarce, —
snowy owls will eat each other.
snowy owls will hunt something else.
snowy owls will leave the area.
snowy owls will hibernate until conditions change.
