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WorksheetsEcosystems Test Review
Total questions: 65
Worksheet time: 2hrs 46mins
Name
Class
Date
1.
Which terrestrial ecosystem has warm, humid conditions and a large variety of plants and animals?
a)
estuary
b)
grassland
c)
deciduous forest
d)
tropical rainforest
2.
The American grassland are home to which types of animals?
a)
elephants, lions, and zebras
b)
foxes, prairie dogs, and rabbits
c)
lizards, tortoises, and weasels
d)
wolves, deer, and bears
3.
Which can be concluded about the trees that grow in a temperate deciduous forest?
a)
The trees require constant direct sunlight to survive
b)
The trees grow only during the warm months of the year
c)
The trees have adapted to survive the change of seasons
d)
The trees are unable to grow in climates that have constant rainfall
4.
Which marine ecosystem would be best for organisms that can adapt to both salt water and fresh water?
a)
Estuary
b)
Lake
c)
Pond
d)
River
5.
Which type of ecosystem best removes pollutants from water?
a)
forest
b)
desert
c)
estuary
d)
grassland
6.
Which ecosystem contains the largest mammals?
a)
ocean
b)
pond
c)
river
d)
swamp
7.
A scientist took pictures of a deer, a black bear, and a squirrel in the wild. In which ecosystem did the scientist most likely take the pictures?
a)
estuary
b)
forest
c)
grassland
d)
salt marsh
8.
Which best describes a desert during the day?
a)
cold and wet
b)
cold and dry
c)
hot and wet
d)
hot and dry
9.
Which lists animals that live in an aquatic ecosystem?
a)
black bear, deer, vole
b)
ducks, turtles, amphibians
c)
panthers, monkeys, snakes
d)
prairie dogs, bison, grasshoppers
10.
Which list includes organisms commonly found in a deciduous forest?
a)
deer, squirrel, mouse
b)
cactus, wildflowers, tortoise
c)
grass, prairie dogs, bison
d)
lizard, scorpion, kangaroo rat
11.
Which is most accurate in describing an estuary ecosystem?
a)
High salt levels keep the water clear of nutrients and proteins
b)
Freshwater mixes with saltwater to provide a nutrient-rich environment
c)
Animals and plants compete for food due to pollution from surrounding areas
d)
Cold water mixes with saltwater to create a cooling effect that encourages growth
12.
Which area is coldest?
a)
rainforest
b)
tundra
c)
grassland
d)
reef
13.
What best describes both marshes and swamps?
a)
Most of the plants in marshes and swamps are trees.
b)
Most of the plants in marshes and swamps are grasses.
c)
Most of the plants in marshes are trees, in swamps grasses.
d)
Most of the plants in marshes are grasses, in swamps trees.
14.
Which type of ecosystem has the greatest variation in temperature from its top to its bottom?
a)
lake
b)
pond
c)
ocean
d)
estuary
15.
Ospreys are birds that eat fish. Where would an osprey most likely live?
a)
near a forest
b)
near a marsh
c)
near a desert
d)
near a prairie
16.
How are the tropical rain forest and pond ecosystems similar?
a)
They both have large amounts of trees.
b)
They both have producers and consumers.
c)
They both have the same plants and animals.
17.
Which best describes a forest ecosystem?
a)
various trees, shrubs, diverse animals and adequate rainfall
b)
freshwater surrounded by land; includes a variety of animals
c)
only grass, fertile soil, and varying temperatures
18.
Which best describes the similarities between grasslands and forests?
a)
Grasslands have moderate temperatures like forest ecosystems
b)
Grasslands have plentiful grasses and trees like forests
c)
Grasslands are dry like most forests
19.
Which best explains the adaptations needed for organisms living in an estuary ecosystem?
a)
Organisms must be adapted to live in salt water.
b)
Organisms must be adapted to live in fresh water.
c)
Organisms must be adapted to live in fresh and salt water.
20.
Which biome is characterized by low temperatures and low amounts of rainfall?
a)
tundra
b)
desert
c)
temperate deciduous forest
d)
tropical rain forest
21.
Which biome covers most of the land mass near the Earth's equator?
a)
tundra
b)
desert
c)
grassland
d)
tropical rainforest
22.
Which biome, because of its climate, has the largest number of species of plants and animals?
a)
tundra
b)
desert
c)
tropical rainforest
d)
pine forest
23.
Which major biome is home to cacti, mesquite, white thorn, pack rats, small reptiles, and coyotes?
a)
desert
b)
taiga
c)
tundra
d)
grassland
24.
Which biome receives between 0 to 25 centimeters of rain per year, has a temperature range of 0 to 50 degrees Celsius, has poor soil, and is home to lizards, scorpions, and snakes?
a)
desert
b)
mountain
c)
taiga
d)
tundra
25.
This biome contains mostly spruce trees and Douglas firs, which are both evergreen. The winters are long and cold and the summers are short and rainy. The soil is very rich. Moose and elk live here. This biome is classified as a
a)
taiga
b)
tundra
c)
deciduous forest
d)
temperate forest
26.
The biome known for trees with broad leaves that fall off the trees in the winter.
a)
Coniferous Forests
b)
Deciduous Forests
c)
Deserts
d)
Tropical Rain Forests
27.
The most important abiotic factors when studying biomes are...
a)
Food and Water
b)
Water and Sunlight
c)
Temperature and Oxygen
d)
Water and Temperature
28.
Areas defined by their geographical location and ecological similarity are called?
a)
ecozones
b)
biotopes
c)
biomes
d)
biodomes
29.
In a food chain, the sun provides energy for an apple tree to grow. A deer eats an apple from the tree. Which is a consumer?
a)
the tree
b)
the apple
c)
the sun
d)
the deer
30.
An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
a)
They break down dead organisms to return nutrients to the soil.
b)
They produce their own food for survival.
c)
They play a role in preventing weathering and erosion.
d)
They provide most of the energy to consumers.
31.
Which best describes a producer?
a)
an organism that gets its energy from plants
b)
a plant that makes its own food
c)
the sun because it provides energy for plants
d)
an organism that gets its energy from animals
32.
Tyler is classifying organisms according to their source of energy. Based on the food chain pictured, which organism would be considered a carnivore?
a)
ant
b)
bird
c)
maple leaf
33.
In which category are all living things most directly dependent upon the sun for energy?
a)
carnivores
b)
producers
c)
herbivores
d)
decomposers
34.
Which best describes the role of decomposers in an ecosystem?
a)
Decomposers eat consumers and pass along energy.
b)
Decomposers eat scavengers and pass along energy.
c)
Decomposers get energy from the sun to help producers.
d)
Decomposers get energy by breaking down decaying matter.
35.
Which best describes grasses, shrubs, and trees?
a)
consumers
b)
decomposers
c)
omnivores
d)
producers
36.
Which best explain the function of producers in a forest ecosystem?
a)
Producers provide energy for consumers in the ecosystem
b)
Producers provide energy for decomposers in the ecosystem
c)
Producers provide energy for other producers in the ecosystem
d)
Producers provide energy for consumers and other producers in the ecosystem
37.
How is a deer in a forest ecosystem most similar to a rabbit in the same ecosystem?
a)
both are decomposers
b)
both are consumers
c)
both are carnivores
d)
both are producers
38.
An energy pyramid shows that less food and energy is available moving from the bottom to the top. Based on this model, where would producers be located on the energy pyramid?
a)
level 1
b)
level 2
c)
level 3
d)
level 4
39.
How are consumers generally classified?
a)
by the amount of food they eat
b)
by the size of their tracks
c)
by the type of food they eat
d)
by the way they digest their food
40.
Bacteria are released into the Gulf of Mexico to help clean up oil spills. What role do the bacteria serve in the marine ecosystem?
a)
decomposers
b)
consumers
c)
producers
d)
predators
41.
Which would most likely increase the number of birds in an area?
a)
cutting down trees that are their habitat
b)
reducing the amount of animals that hunt and kill them
c)
planting plants that the birds do not eat
d)
removing all the food sources for those birds
42.
What is an endangered species?
a)
a species that has plenty of - they are in no danger at all
b)
a species of animal that has very few in the world; in danger (at risk) of becoming extinct
c)
all species
43.
What is a human cause of endangered species?
a)
more predators move into an area
b)
less prey are available in an area
c)
habitats are destroyed to make buildings or houses
44.
Which will happen if a large area of trees are removed from a forest to build a neighborhood?
a)
there would be increase in the loss of habitat
b)
increase in the number of predators
c)
increase in food sources for animals
d)
increase in number of species of plants
45.
When does the greatest competition occur for food and water between organisms from different populations?
a)
when organisms use the same shelter
b)
when organisms use the same niche
c)
when populations are different in a niche
46.
Why is sunlight important in any ecosystem
a)
it''s the main source of food
b)
it helps animals mate
c)
it is the energy for all producers in an ecosystem
d)
it heats the soil to increase the nutrients for the consumers
47.
Why is sunlight important in any ecosystem
a)
it''s the main source of food
b)
it helps animals mate
c)
it is the energy for all producers in an ecosystem
d)
it heats the soil to increase the nutrients for the consumers
48.
A cause of overgrown algae in a lake that then kills plants and fish....
a)
people throwing garbage near a road
b)
logging companies cutting trees in forests
c)
farmers using excess fertilizers on crops
d)
factories producing smoke that pollutes the air
49.
why there are few plants in the deepest parts of the ocean?
a)
more salty the deeper you go
b)
they need sunlight to produce food
c)
the water is too hot the deeper you go
d)
there are more herbivores the deeper you go
50.
An organism that feeds off another organism and causes it harm.
a)
symbiosis
b)
host
c)
parasite
d)
competition
51.
An organism that may or may not be harmed in a relationship.
a)
parasite
b)
competition
c)
host
d)
symbiosis
52.
If wolves prey on deer for food, what will most likely happen to the deer population if wolves are removed from an area where deer live?
a)
he population of deer will increase.
b)
The population of deer will decrease.
c)
The population of deer will remain the same.
d)
The population of deer will become extinct.
53.
Meadow moles are small mouse-like animals that eat plants and animals. Their niche in an ecosystem is a?
a)
omnivore
b)
herbivore
c)
producer
d)
scavenger
54.
Which would most likely increase the number of squirrels living in an area?
a)
cutting down trees that serve as habitats for squirrels.
b)
planting trees that produce nuts squirrels do not eat.
c)
Reducing the number of animals that hunt and kill squirrels.
d)
removing all food sources for squirrels from the area.
55.
Which best explains why many kinds of plants and animals can live together in an ecosystem?
a)
The plants and animals all care for each other and protect one another.
b)
The plants and animals are all part of a food chain and depend on each other to live.
c)
The plants and animals are independent of one another, so they can live together,
d)
The plants and animals all feed on the same things, so they compete with each other for food.
56.
The place in which an organism lives
a)
habitat
b)
population
c)
ecosystem
d)
niche
57.
How have desert plants adapted to their environment?
a)
by limiting the use of sunlight
b)
by storing water
c)
by distributing certain nutrients
d)
by releasing water
58.
Which is the best example of habitat reduction caused by humans
a)
Birds and animals flee a forest fire caused by lightning
b)
Birds become sick from eating insects new to their area
c)
Fish swimming to breeding grounds are blocked by dams
d)
A new species of fish migrates up a river competing with native fish or food
59.
When the prey population in an ecosystem increases, which will most likely happen to the predator population?
a)
The predator population will die out.
b)
The predator population will decrease.
c)
The predator population will gradually increase.
d)
The predator population will move to another ecosystem.
60.
When does the greatest competition occur for food and water between organisms from different populations?
a)
when the populations require similar shelter
b)
when the populations occupy the same niche
c)
when the populations are in different ecosystems
d)
when the populations hunt at the same time of day
61.
Which best describes the result if the number of lily pads in a pond ecosystem increases?
a)
Consumers of the lilypads would increase because of a larger food source.
b)
The lily pads would prevent fish from absorbing the sun’s energy.
c)
Consumers of the lilypads would decrease because of increased competition.
d)
The lilypads would use the oxygen in the air, which would lower the number of consumers.
62.
In a food chain, the sun provides energy for an apple tree to grow. A deer eats an apple from the tree. Which is a consumer?
a)
the tree
b)
the apple
c)
the sun
d)
the deer
63.
Which best explains why producers are an important part of an ecosystem?
a)
They pass the Sun’s energy on to other organisms.
b)
They pass energy from consumers to decomposers.
c)
They make their own energy and pass it on to other producers.
d)
They pass energy from first-level consumers to second-level consumers.
64.
What does a plant need to make sugar through photosynthesis?
a)
soil, water, and oxygen
b)
oxygen, sunlight, and soil
c)
carbon dioxide, sunlight, and soil
d)
sunlight, water, and carbon dioxide
65.
Greg was studying a forest ecosystem. He placed some of the animals he studied in an energy pyramid. Based on Greg’s energy pyramid, which organisms contain the MOST energy?
a)
the wolves
b)
the weasels
c)
the beetles
d)
the trees
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