Levels of Organization
What is a single organism called?
A) Population
B) Community
C) Individual
D) Ecosystem
C) Individual
What are living and nonliving factors in an area called?
A) Community
B) Ecosystem
C) Population
D) Habitat
B) Ecosystem
What is a producer?
A) An organism that eats other organisms
B) An organism that makes its own food
C) A type of herbivore
D) A type of carnivore
B) An organism that makes its own food
What does a food chain show?
A) A habitat
B) A series of events where one organism eats another
C) Only plants
D) Only animals
B) A series of events where one organism eats another
How much energy moves from one trophic level to the next?
A) 5%
B) 10%
C) 25%
D) 50%
B) 10%
What is a group of the same animal?
A) Community
B) Population
C) Ecosystem
D) Species
B) Population
Name one biotic factor in an ecosystem.
A) Water
B) Sunlight
C) Plants
D) Soil
C) Plants
Give one example of a consumer.
A) Grass
B) Rabbit
C) Sunflower
D) Water
B) Rabbit
What does an arrow in a food web mean?
A) Who is the predator
B) The direction of energy flow
C) The largest organism
D) The smallest organism
B) The direction of energy flow
What happens to the other 90% of energy?
A) It is stored as food
B) It is used by the organism for life processes
C) It disappears
D) It is transferred to the next level
B) It is used by the organism for life processes
What do we call all living things in a specific area?
A) Ecosystem
B) Community
C) Population
D) Biome
B) Community
Name one abiotic factor in an ecosystem.
A) Animals
B) Plants
C) Water
D) Bacteria
C) Water
What do we call organisms that eat plants?
A) Carnivores
B) Omnivores
C) Herbivores
D) Decomposers
C) Herbivores
What is the difference between a food chain and a food web?
A) A food chain shows one pathway; a food web shows many.
B) They are the same.
C) A food web is simpler.
D) A food chain has more organisms.
A) A food chain shows one pathway; a food web shows many.
How does energy transfer affect food chains?
A) It limits the number of trophic levels.
B) It increases the number of organisms.
C) It does not affect them.
D) It only helps producers.
A) It limits the number of trophic levels
Define an ecosystem.
A) A group of the same species
B) All living and nonliving factors in an area
C) Only the plants in an area
D) A community of animals
B) All living and nonliving factors in an area
How do ecosystems differ from communities?
A) Ecosystems include nonliving factors; communities do not.
B) Ecosystems are larger.
C) Communities are only plants.
D) Ecosystems are only animals.
A) Ecosystems include nonliving factors; communities do not.
What is the difference between herbivores and carnivores?
A) Herbivores eat plants; carnivores eat animals.
B) Herbivores eat both; carnivores eat only plants.
C) They are the same.
D) Herbivores are larger.
A) Herbivores eat plants; carnivores eat animals.
What do primary consumers do in a food chain?
A) Eat producers
B) Eat decomposers
C) Eat secondary consumers
D) Produce energy
C) Eat secondary consumers
Why are producers important?
A) They eat consumers.
B) They capture energy from the sun.
C) They are always the largest organisms.
D) They do not play a role.
B) They capture energy from the sun.
What is the highest level of organization?
A) Community
B) Population
C) Biosphere
D) Ecosystem
C) Biosphere
What is the role of decomposers?
A) To eat producers
B) To break down dead organisms
C) To produce energy
D) To compete with consumers
B) To break down dead organisms
Name a type of consumer that eats both plants and animals.
A) Herbivore
B) Carnivore
C) Omnivore
D) Decomposer
C) Omnivore
What does an energy pyramid show?
A) The number of species
B) The amount of energy at each trophic level
C) Only plants
D) Only animals
B) The amount of energy at each trophic level
What is the role of a tertiary consumer?
A) To produce energy
B) To eat primary consumers
C) To eat secondary consumers
D) To decompose materials
C) To eat secondary consumers.