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