Unit 7 Review 2021

All the organisms of one species living in an area is ________________.

• an organism
• a population
• a community
• an ecosystem

ALL living organisms in an area are called ______________.

• an organism
• a population
• a community
  a community
• an ecosystem

All the biotic and abiotic factors that interact in an area are called ______________.

• an organism
• a population
• a community
  a community
• an ecosystem

A living thing is called _____________.

• an organism
• a population
• a community
• an ecosystem

Living factors in an ecosystem (like plants, animals, bacteria, etc.) are called ____________.

• Abiotic factors
• Biotic factors

Non-living factors in an ecosystem (like water, sunlight, dirt, rocks, etc) are called ____________.

• Abiotic factors
• Biotic factors

The levels of Organization in an ecosystem, in order from smallest to largest, is:

• population, community, ecosystem, organism
• population, organism, community, ecosystem
• ecosystem, community, population, organism
• organism, population, community, ecosystem

What non-living things do grassland ecosystems include?

• Soil and often rivers or lakes.

• Pastures and the bushes

• Zebras, rabbits and owls

• Grasshoppers and ants,

The system that contains all living things on Earth.

• Biosphere

• Atmoshpere

• Hydrosphere

• Geosphere

What is the breakdown of the Earth’s crust into sediment called?

• erosion

• deposition

• weathering

• whooshing