Life On Earth Flashcards
Biodiversity
The Number and variety of different living species of organisms in one area
Producer
Living organisms that make their own food(green plants)
Consumer
Any organism that eats something else
Ecosystem
All the living and non living organisms partially to do with the habitat and non living organisms with which they interact
Habitat
The place where an organism lives
Community
All of the living organisms in an ecosystem eg. All the plants and animals
Population
The total number of living organisms in one area. Only one species
Niche
The role that an organism plays within a community
Inter specific competition
Competition amongst individuals of different species eg. Red and grey squirrels
Intra specific competition
Competition amongst the same species. More intense than inter. Eg. Stag for mates
What do animals compete for
Food Light Water Mates Territory/space
Pyramids of numbers
Show number of organisms present at each level of food chain
Pyramids of energy
Show the flow of energy in a food chain. Amount of energy decreases as you go up the food chain
Energy loss in ecosystem
Food consumption
Used for growth
Heat and movement
Lost in waste, faeces, urine
Abiotic factors
Non living
- light intensity
- pH
- moisture
- humidity
