Science Chapter 13 Test
24 Questions
| Total Attempts: 77
Questions and Answers
- 1.How do organisms in each of the three energy roles obtain energy?
- 2.Why is a food chain a more realistic way of portraying an ecosystem?
- 3.What roles do producers and consumers play in he carbon and oxygen cycles?
- 4.Explain the carbon and oxygen cycle
- 5.Explain the water cycle
- 6.Explain the nitrogen cycle
- 7.Name the three energy roles that organism fill in an ecosystem
- A.
Consumer
- B.
Producer
- C.
Scavenger
- D.
Decomposer
- 8.The energy pyramid shows the amount of _________ that moves from one feeding level to another food web
- 9.The amount of energy gets higher as more consumers eat it
- A.
True
- B.
False
- 10.Name the three major process that occur during the water cycle
- A.
PErcipatation
- B.
Evaporation
- C.
Condensations
- D.
Rain
- 11.The______is the driving force behind the water cycle
- 12.Carbon and __________ are linked in one recycling process
- 13.The death of all producers would be good for the carbon and oxygen cycles
- A.
True
- B.
False
- 14.Why do organisms need oxygen?
- A.
It is food for all living things
- B.
Its a protien
- C.
Its a building block in the matter of living things
- 15.If all the nitrogen fixation bacteria died it would be very bad.
- A.
True
- B.
False
- 16.Has continental drift affected the dispersal of species?
- A.
Yes
- B.
No
- 17.Three ways organisms can be dispersed
- A.
Wind
- B.
Climate
- C.
Living things
- D.
Water
- 18.Name three factors that can limit dispersal
- 19.Name and example of a decomposer
- 20.When the world was 1 super continent it was called _______
- 21.Humans affect the carbon and oxygen cycle
- A.
True
- B.
False
- 22.Energy enters most ecosystems as ________
- 23.The process by which produces use the suns energy turn into water and carbon then into food molecules is called
- A.
Fixation
- B.
Photosynthesis
- C.
Condensation
- D.
Dispersal
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