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WorksheetsReview Unit 5: Ecosystems
Total questions: 20
Worksheet time: 17mins
What is the definition of biotic?
living things in an ecosystem
nonliving things in an ecosystem
a characteristic that helps an organism survive and reproduce in its environment
squirrels
What is the definition of abiotic?
non-living things in the ecosystem
producers
the place in an ecosystem where an organism lives
population
Define "habitat."
the path of food energy from the sun to the producer to a series of consumers (showing the feeding relationships in an ecosystem)
all organisms of the same species that live in the same place at the same time
the place in an ecosystem where an organism lives
all organisms of the same species that live in the same place at the same time
Which is the correct order of the levels of organization in an ecosystem from least to most diverse?
population<organism<ecosystem<community<biome<biosphere
organism< population<ecosystem<community<biome<biosphere
organism<population<community<ecosystem<biosphere<biome
organism<population<community<ecosystem<biome<biosphere
Which organisms mostly reproduce asexually?
animals
fungi
plants
fish
Define "food chain."
a large region of land with a distinct climate and certain types of plant and animal life
all organisms of the same species that live in the same place at the same time
the part of the Earth that is able to support life
the path of food energy from the sun to the producer to a series of consumers (showing the feeding relationships in an ecosystem)
How does energy transfer through the levels of the energy pyramid?
Energy flows from smaller organisms to larger ones.
Energy moves down through the energy levels of the food pyramid
Energy moves up through the energy levels of the food pyramid.
Energy moves from warm blooded organisms to cold blooded ones.
What does it mean to say there is equilibrium within an ecosystem?
There are equal numbers of male and female organisms
There are equal numbers of plants and animals
A state of balance where the types of species living in an area are not changing rapidly.
The ecosystem is unbalanced.
Which ecosystem most likely has the greatest biological diversity and therefore the highest sustainability?
a pine tree in which three groups of birds live
a rainforest that has many different types of plants and animals
a tundra region that has many penguins
a tank that includes several goldfish
Which of the following is an example of an interaction between a biotic and abiotic factor in an ecosystem?
A deer drinks from a pond.
A robin lays eggs.
A fish eats an insect.
Bacteria break down the remains of a dead plant
Only a small amount of the energy consumed by an organism is available to flow to the next organism in a food web. Which of the following statements explains the reason for this?
Primary and secondary consumers compete for food.
There are many more consumers than producers in a food web.
There are many more producers than consumers in a food web.
Most of the energy is used for life processes.
Each level of organization in an ecosystem is made up of parts. In a diagram of a coral reef ecosystem, which of the following is an example of the population level of organization?
A group of sea anemones
a colony of coral and a stand of sea grass
seawater
a clown fish
Which of the following statements best describes the relationship between ecosystems and biomes?
An ecosystem may contain many biomes, and biomes within the same ecosystem are typically home to similar species of organisms.
A biome may contain many ecosystems, and ecosystems within the same biome are typically home to similar species of organisms.
Both biomes and ecosystems are characterized by their climate conditions and the communities that live in them; however, biomes refer to land environments and ecosystems refer to aquatic environments.
Both biomes and ecosystems are characterized by their climate conditions and the communities that live in them; however, ecosystems refer to land environments and biomes refer to aquatic environments.
What is the relationship between a niche and a habitat?
A niche is the role an organism takes within a place called a habitat.
Both niches and habitats are synonyms for the word “population.”
Niches are types of organisms that live in habitats.
A niche is the place where an organism lives, and the habitat is the role that organism takes in the niche.
Visualize a diagram of a prairie ecosystem. Which choice lists the organism(s) at the community level of the prairie ecosystem?
a group of prairie dogs
a prairie dog
prairie dog, badger, prairie chicken, snake, grass, trees, bison, clouds, sunlight
prairie dog, badger, prairie chicken, grass
Which of the following is an example of an abiotic factor in an ecosystem?
roots
grass
birds
sunlight
All the different populations that live together in an area make up a(n)-
community
biome
ecosystem
biosphere
An abiotic factor that affects the ability of a plant to meet its energy needs in an ecosystem is?
oxygen
sunlight
grass
soil
Functions of animals that help them survive in their environment are –
modifications
characteristics
adaptations
behaviors
Which organism in the food chain is responsible for transforming radiant energy into chemical energy?
coyote
sunlight
grass
prairie dog
