Ecology Study Guide

5 Written Questions

1. 10% of the energy is transfered from one level to the next
2. a group of interdependent organisms inhabiting the same region and interacting with each other
3. An organism that eats primary consumers
4. An organism that eats secondary consumers
5. plant eater

5 Matching Questions

1. carbon fixation
2. Ecosystem
3. primary producer
4. carnivore
5. heterotrophs

1. a process of carbon dioxide into organic compounds
2. b a community of organisms and their non-living environment
3. c a flesh-eating animal
4. d Organisms that produce energy available for other organisms to eat
5. e organisms that cannot make their own food

5 Multiple Choice Questions

1. a part of the earth where life exsists including land, water and air
   1. Ecosystem
   2. biosphere
   3. detrivore
   4. biomass
2. the position an organism occupies in a food chain, e.g. producer, secondary consumer, decomposer
   1. biosphere
   2. omnivore
   3. tropic level
   4. nitrogen
3. eats plants and animals
   1. herbivore
   2. carnivore
   3. omnivore
   4. detrivore
4. An organism that eats producers
   1. primary producer
   2. tertiary consumer
   3. secondary consumer
   4. primary consumer
5. changing nitrates into nitrogen gas
   1. denitrification
   2. evaporation
   3. carbon fixation
   4. nitrogen fixation

5 True/False Questions

1. biomass → the total mass of living matter in a given unit area

   True        False

2. transpiration → loss of water from a plant thourgh its leaves

   True        False

3. Predation → a group of the same organisms that live in a certian area

   True        False

4. Competition → a group of the same organisms that live in a certian area

   True        False

5. parasitism → one species benefits while the other is harmed

   True        False