Vocabulary
What is an ecosystem?
A) Only the living things in an area
B) A community of living organisms together with nonliving components of their environment
C) Only the plants in a specific region
D) A type of weather pattern
B) A community of living organisms together with nonliving components of their environment
An animal that hunts other animals for food is called a:
A) Scavenger
B) Producer
C) Predator
D) Herbivore
C) Predator
Which of the following is NOT a biotic factor in an ecosystem?
A) Trees
B) Bacteria
C) Rocks
D) Fish
C) Rocks
What is a habitat?
A) A type of animal
B) The natural home or environment of an organism
C) A food source
D) A type of weather
B) The natural home or environment of an organism
Producers in an ecosystem:
A) Eat other organisms
B) Break down dead organisms
C) Make their own food through photosynthesis
D) Control the population of other species
C) Make their own food through photosynthesis
A food chain shows:
A) How to cook different foods
B) The flow of energy from one organism to another
C) The size of different animals
D) How fast animals can run
B) The flow of energy from one organism to another
Which of these is an example of a decomposer?
A) Eagle
B) Mushroom
C) Deer
D) Cactus
B) Mushroom
Which of these is an example of a predator-prey relationship?
A) Bees pollinating flowers
B) Birds eating worms
C) Moss growing on a tree
D) Bacteria breaking down dead leaves
B) Birds eating worms
An organism that eats both plants and animals is called a:
A) Carnivore
B) Herbivore
C) Omnivore
D) Decomposer
C) Omnivore
What is the main source of energy for most ecosystems on Earth?
A) Wind
B) Water
C) The Sun
D) Soil
C) The Sun
Which of these is an abiotic factor in an ecosystem?
A) Birds
B) Grass
C) Temperature
D) Insects
C) Temperature
The relationship where one organism benefits and the other is neither helped nor harmed is called:
A) Parasitism
B) Mutualism
C) Commensalism
D) Competition
C) Commensalism
What is carrying capacity?
A) How much weight an animal can carry
B) The maximum population size that an environment can sustain
C) The number of trees in a forest
D) How much water is in a lake
B) The maximum population size that an environment can sustain
The process by which plants make their own food using sunlight is called:
A) Respiration
B) Photosynthesis
C) Decomposition
D) Hibernation
B) Photosynthesis
Which of these would be at the top of a food pyramid?
A) Grass
B) Rabbit
C) Snake
D) Hawk
D) Hawk
When two species compete for the same limited resource, this is called:
A) Predation
B) Mutualism
C) Competition
D) Commensalism
C) Competition
What is biodiversity?
A) A type of soil
B) The variety of life in a particular habitat or ecosystem
C) A kind of weather
D) The depth of a lake
B) The variety of life in a particular habitat or ecosystem
What happens to energy as it moves through a food chain?
A) It increases at each level
B) It stays the same
C) It decreases at each level
D) It disappears completely
C) It decreases at each level
Which of these ecosystems has the highest biodiversity?
A) Tropical rain forest
B) Arctic tundra
C)Desert
D) Mountain peak
A) Tropical rain forest
What is the term for all the populations of different species living and interacting in the same area?
A) Habitat
B) Niche
C) Biome
D) Community
D) Community