ecosystems Flashcards
species
group of organisms which interbreed to produce fertile offspring
biodiversity
total variety of all living things on earth
population
group of organisms of same species
where does the energy in ecosystem come from
sun
producer
green plant which produces its own food by photosynthesis
consumer
organism which must eat plants or other animals to obtain energy
herbivore
organism which only eats plants eg sheep and cow
carnivore
only eats animals eg lion and penguins
omnivore
eats both plants and animals eg human and chimpanzees
what does the arrow of food chain indicate
direction of energy flow
predators
animal which hunts another animal for its food
prey
haunted animal
ecosystem
natural biological unit which consists of all organisms living in a particular habitat and the non living component with which the organisms interact
habitat
place where organism lives
population
group of organisms of same species