Chapter 1 Life On Earth Flashcards
What is a pyramid of biomass?
A diagram that shows the total mass of organisms at each level of a food chain
What are biotic factors?
Environmental factors related to living things
What does the term competition mean?
When organisms use the same resources
What are Abiotic factors
Environmental factors related to non living things
What is a consumer?
An organism which gains energy by eating other organisms
What is a Community?
All the living organisms present in an ecosystem
What is a food chain?
A pathway showing the energy transfer from one organism to another
What is an ecosystem?
The community + the habitat
What is a producer?
Organisms which make their own food by photosynthesis
What is a pyramid of numbers?
A diagram that shows the number of organisms at each level of a food chain
What is a habitat?
The place where an organism lives
What is a food web?
A diagram showing all the feeding relationship in a community
What is a population?
All the organisms of one species in an ecosystem
What does the term prey mean?
An animal that is hunted and killed by another for food
What is a predator?
An animal that hunts and kills others for food
