Chapter 4 : Ecosystems Flashcards
an area where organisms interact with one another, as well as with the nonliving parts of the environment
ecosystem
a group of organisms of the same species living together in an ecosystem
population
all of the populations living in an ecosystem
community
the part of the ecosystem in which an organism lives
habitat
the role of an organism in an ecosystem
niche
the variety of species in an ecosystem
diversity
an organism that makes it own food
producer
an organism that eats other organisms
consumer
a sequence of connected producers and consumers
food chain
a group of connected food chains in an ecosstem
food web
a pyramid that shows that energy is lost at each level of the food chain
energy pyramid
the struggle among organisms for limited resources in an area
competition
a close relationship between organism of different species which one or both organisms benefit
symbiosis
an organism that live in or on another organism
parasite
the organism a parasite lives in or on
host
a region of the world defined by its climate and types of plants & animals that live there
biome
a forest biome that is farthest north and very cold
taiga
a harsh environment just south of the ice fields of the Arctic
tundra
a type of biome that has a dry and extreme climate
desert
areas with enough rainfall and warmth for trees to grow, and the trees are the main vegetation in each
forest
biome in which the main plants are grasses
grassland
