5 Written Questions

1. group of individuals of the same species that live in the same area
2. organism that feeds on plant and animal remains and other dead matter
3. process by which water changes from a liquid into an atmospheric gas
4. loss of water from a plant through its leaves
5. an immediate increase in the amount of algae and other producers that results from a large input of limiting nutrient

5 Matching Questions

1. biosphere
2. species
3. community
4. resource
5. denitrification

1. a conversion of of nitrates into nitrogen gas
2. b assemblage of different populations that live together in a defined area
3. c part of earth in which life exists including land, water, and air or atmosphere
4. d any necessity of life, such as water, nutrients, light, food, or space
5. e group of similar organisms that can breed and produce fertile offspring

5 Multiple Choice Questions

1. organism that obtains energy by eating both plants and animals
   1. herbivores
   2. omnivores
   3. detritivores
   4. carnivores
2. process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
   1. photosynthesis
   2. chemosynthesis
   3. autotrophs
   4. ecosystem
3. organism that obtains energy by eating only plants
   1. omnivores
   2. carnivores
   3. detritivores
   4. herbivores
4. collection of all the organisms that live in a particular place, together with their nonliving environment
   1. food web
   2. resource
   3. ecology
   4. ecosystem
5. chemical substance that an organism requires to live
   1. biome
   2. species
   3. autotrophs
   4. nutrient

5 True/False Questions

1. limiting nutrient → chemical substance that an organism requires to live

   True        False

2. trophic level → step in a food chain or food web

   True        False

3. biome → group of ecosystems that have the same climate and dominant communities

   True        False

4. food chain → series of steps in an ecosystem in which organisms transfer energy by eating and being eaten

   True        False

5. nitrogen fixation → process of converting nitrogen gas into ammonia

   True        False