4a + b - Ecology Flashcards
What are abiotic factors ?
Non living factors
What are biotic factors ?
Living factors
What are 3 examples of abiotic factors?
- light intensity
- temperature
- CO2/O2 Levels
What are 3 examples of biotic factors
- pathogens
- predators
- competition
What are producers?
Organisms that produce their own energy from sunlight
What are primary consumers?
Herbivores
What are secondary consumers
Predators that feed on primary consumers
What are tertiary consumers?
Predators that feed on secondary consumers
What do trophic levels describe
The position of an organism in a food chain/web
Give three ways energy is lost?
- making waste products
- as movement
- as heat
What is an ecosystem
The community of organisms and the habitat they live in.
What is a population
A group of organisms of one species, living in the same area at the same time
What is a community?
All the different species in a habitat
What is a habitat?
The place where an organism lives
