What is a community?
Two or more populations of organisms in their environment
The interaction between living organisms and the environment
All the organisms of the same or closely-related species
Two or more populations of organisms
What is a population?
All the organisms of the same species in an area
Two or more communities of organisms
The interactions between organisms and their environment
What is an ecosystem?
Two or more populations that exist in an environment
All the organisms of the same species in an area
Two or more populations of organisms
Identify the producer.
Fox
Rabbit
Predator
Grass
What is a secondary consumer?
An omnivore that eats plants and meat.
An organism that eats tertiary consumers.
An organism that eats producers.
An organism that is a carnivore and eats primary consumers.
What does interdependence mean?
All organisms in an ecosystem depend upon each other.
Organisms in an ecosystem are independent of each other.
The populations of all species remain relatively constant.
Photosynthesising plants in an ecosystem compete for light.
What is intraspecific competition?
The competition that exists between different species.
The competition that exists among organisms of same species.
What is a stable community?
The size of the populations in it vary dramatically.
The size of the populations in it remain fairly constant.
Identify the abiotic factors.
Light intensity, temperature, moisture, soil pH
New predators, availability of food, new pathogens
Identify the biotic factor.
New pathogens
Wind intensity
Oxygen levels
Light intensity
What thing are mammals not competing for?
Oxygen
Mates
Food
Territory
What behavioural adaptation does a male peacock have?
He has good vision and hearing
He has sharp claws and a sharp beak
He shows his tail feathers as a mating ritual
What structural adaptations do cacti have?
Chloroplasts for photosynthesis
Spines to stop them from being eaten
It grows towards the light
What is an extremophile?
An organism that lives in an extreme environment.
An organism that avoids extreme environments.
Why do plants and animals adapt to their environment?
To survive and reproduce
To produce body heat
To prevent DNA mutation
To aerobically respire
How is the Arabian oryx adapted to survive in the hot desert?
Large hooves to walk in the sand
Light colour to stay warm
Long horns help it to find water
