ecology Flashcards
define habitat
the environment that an organism lives in
define population
group of the same species living in an area
define species
organisms that have similar characteristics and can reproduce to produce FERTILE offspring
define competition
organisms trying to gain a share of limited resources
define interdependence
organisms relying on each other for food and shelter
define ecosystem
the living and non-living things in a given area
define producer
a green plant or algae that makes its own food using sunlight
define consumer
an organism that eats another organism
define decomposer
organisms that break down dead plant and animal material
define food chain
a diagram to show the direction of energy transfer between organisms
state three things plants compete with each other for
light
space
water
mineral ions`
state three things animals compete with each other for
food
mates
territory
state three things organisms depend on each other for
food
shelter
pollination
state the type of organism that all food chains start with
producer
what will happen to the number of predators if the number of prey increases
the number of predators will increase
what will happen to the number of prey if the number of predators increases
the number of prey will increase
what does the arrow in a food chain represent
the direction of energy transfer
define carnivore
an organism that eats only other animals
define omnivore
an organism that eats both animals and plants
define herbivore
an organism that eats only plants
