What is the role of decomposers in an ecosystem?
They produce their own food
They hunt other animals
They eat only plants
They break down dead organic matter
What is the driest ecosystem on Earth?
Desert
Grassland
Rainforest
Tundra
THE BEST TEACHER IS ________.
MS GRACE
An ecosystem includes only living organisms such as plants and animals.
True
False.
he open ocean is part of a_________ecosystem.
Artificial
Marine
Terrestrial
Freshwater
Mutualism is a relationship in which one species benefits while the other is harmed.
True
False
Forests, tundras, and grasslands are types of aquatic ecosystems.
True
False
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_________is made of interconnected food chains in an ecosystem.
A habitat
A food web
A community
A population
_________is when different species compete for the same limited resources.
Decomposers
Mutualism
Competition
Parasitism
Biodiversity refers to the variety of living things in an ecosystem.
True
False
_________ ecosystems include rivers and lakes.
Forest
Freshwater
Marine
Desert
What are the physical components of an ecosystem?
Humans, animals, and plants
Animals, plants, and microorganisms
Sunlight, air, water, soil, and temperature
Food, water, and shelter
The relationship in which one species benefits while the other is harmed is called_________.
Parasitism
Commensalism
Mutualism
Carnivore
What is the coldest ecosystem on Earth?
Grassland
Desert
Rainforest
Tundra
_________ forests grow near the Equator.
Flower
Tropical
Coniferous
Deciduous
Which of the following is an example of a producer?
Mushroom
Grass
Lion
Giraffe
Decomposers break down dead organic matter, such as dead plants and animals.
True
False
A group of organisms of the same species living together is called a _________.
Population
Habitat
Community
Mutualism
A food chain starts with _________, which make their own food through photosynthesis.
Decomposers
Producers
Sunlight
Consumers
_________break down dead plants and animals, returning nutrients to the environment.
Consumers
Omnivores
Producers
Decomposers
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Tertiary consumers only eat plants.
False
True
_________eat both plants and other animals.
Primary consumers
Producers
Decomposers
Secondary consumers
The desert ecosystem has a lot of water and dense vegetation.
True
False
Which of the following is an example of an artificial aquatic ecosystem?
Rivers
Aquariums
Coral reefs
Lakes
Which relationship benefits both species?
Parasitism
Commensalism
Competition
Mutualism
A food chain shows how energy moves through an ecosystem from producers to consumers.
False
True
Which of the following is an example of a primary consumer?
A rabbit eating grass
A bird eating a snake
A wolf eating a rabbit
A mushroom breaking down a tree
Which is NOT a type of terrestrial ecosystem?
Forest
Ocean
Grassland
Desert
Artificial ecosystems are man-made, such as aquariums, greenhouses, and urban areas.
False
True
A community is a place where a particular plant or animal lives.
True
False
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