LIVING ORGANISMS
COMMUNITY
TUNDRA
MARINE ECOSYSTEM
DESERT
HABITAT
POPULATION
PHYSICAL ENVIRONMENT
GRASSLANDS
TROPICAL RAINFOREST
TEMPERATE FOREST
ECOSYSTEM
a large, barren region with no trees which is often very cold
forests with tall trees, warm climates, and lots of rain
an arid region with little or no vegetation
number of organisms of the same species within an ecosystem
a place where an organism lives
a living thing that can be split into the five kingdoms
land covered with grasses and other soft plants but not with bushes and trees
the part of the environment that includes purely physical factors (such as soil, climate, water supply)
complex of living organisms in the ocean environment
different populations interacting with each other
area with many trees where the temperatures and seasons vary throughout the year but never to extremes
a community of organisms interacting with its environment
