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