All members of one kind of organism that live in the same area

• population
• microorganism
• communit
• organism

All the living parts of an ecosystem

• biotic
• abiotic
• cell
• atom

All of the non-living parts of an ecosystem

• abiotic
• biotic
• population
• community

Is sunlight a biotic or abiotic factor?

• biotic
• abiotic

A group of different populations of organisms

• population
• organism
• community
• habitat

Land-based ecosystem including forests and grasslands

• terrestrial
• abiotic
• biotic
• aquatic

Have many trees, shrubs, grasses, ferns, and a variety of animals

• forest
• grassland
• ocean
• lake

Have fertile soil and are covered with tall grasses

• forest
• grasslands
• lakes
• oceans

Body of fresh water completely surrounded by land

• lake
• river
• ocean
• island

Large body of saltwater divided by continents

• ocean
• lake
• stream 
• estuary