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5 Written questions

5 Matching questions

  1. Ecosystems
  2. Estuary
  3. Humus
  4. Niche
  5. Competition
  1. a A material in soil formed by the breakdown of plant and animal remains.
  2. b An attempt by organisms to obtain a resource that is available in limited supply.
  3. c The living things in an area are parts of special systems called ___________.
  4. d An ____________ is the part of a river where fresh water meets the sea and is affected by the tides.
  5. e Each species has a different _________, or role in the community.

5 Multiple choice questions

  1. When a population has access to ample food, living space, and other resources, it will grow very quickly in a pattern called ________________.
  2. Both organisms benefit in _______________. This is a positive form of symbiosis because the relationship benefits both species.
  3. The study of organisms and how they interact in an ecosystem.
  4. A ___________ is a region that has a particular climate and contains certain types of plants and animals.
  5. The highest rate of reproduction under ideal conditions is a population's ________________.

5 True/False questions

  1. TundrasEarth's biomes include, taigas, _________, deserts, grasslands, rain forests, and deciduous forests.


  2. Carrying CapacityAn environmental factor that limits how large a population can grow.


  3. Wetlands__________ are areas in which water is near the surface of the soil most of the time.


  4. Climate___________ is a cool forest of cone-bearing evergreen trees.


  5. ParasitismIn an ecosystem, all the organisms of one species make up a ____________.


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