Ch. 3 Lesson 1What are parts

of ecosystems?

ecosystem•all living & nonliving things in an environment & how they interact

• living things= plants, animals, bacteria, etc.

•nonliving things= water, air, soil, sun

ecosystem characteristicsdesert

grassland

tundra

forest

tropical rain forest

desertdesert • driest ecosystemdriest ecosystem

• covered w/ tall grassescovered w/ tall grasses

• medium amount of rainmedium amount of rain

grasslandgrassland

tundratundra• cold, drycold, dry• some grasses- no some grasses- no treestrees

forestforest• filled w/ trees & animalsfilled w/ trees & animals

• more rain than grasslandsmore rain than grasslands

tropical tropical rain forestrain forest

• rains all yearrains all year

• many different animalsmany different animals

tropical tropical rain forestrain forest

• rains all yearrains all year

• many different animalsmany different animals

tundratundra• cold, drycold, dry• some grasses- no some grasses- no treestrees

forestforest• filled w/ trees & animalsfilled w/ trees & animals

• more rain than grasslandsmore rain than grasslands

desertdesert • driest ecosystemdriest ecosystem

• covered w/ tall grassescovered w/ tall grasses

• medium amount of rainmedium amount of rain

grasslandgrassland

desertdesert

tropical tropical rain forestrain forest

forestforest

population• all the members of 1 species that live

within an area of an ecosystem• size may change depending on

available:– Food– Water– Space

community• different populations that interact in an area

habitat• area or place where

an organism lives in an ecosystem

Organism’s address

niche• specific role an organism has in

its habitat• includes:

–Type of food it eats–How it gets its food–Adaptations

Ecosystems, Populations and Habitats

•Name the: population community

habitat niche