IB Biology - Ecology Test Review
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IB biology can be a bit challenging for anyone taking it. Are you one of them and have read up on the ecology topic and now feel certain you have a good understanding of it? Why don’t you take the trivia below and brush up on the topic? All the best!
- 1.Sunlight is the initial source of energy in an ecosystem
- A.
True
- B.
False
- 2.Light energy is converts chemical energy using oxygen compounds by photosynthesis.
- A.
True
- B.
False
- 3.Chemical energy flows through the food chain by the means of killing
- A.
True
- B.
False
- 4.The food chain is as follows from beginning to end:Producers/Primary Consumers/Secondary Consumers/Tertiary Consumers/etc.
- A.
True
- B.
False
- 5.Peat is partially decomposed plant materials and can be used as a fossil fuel.
- A.
True
- B.
False
- 6.Organic matter: heated to its ignition temperature when oxygen is present will explode and turn into gas.
- A.
True
- B.
False
- 7.Energy released from [Blank] compounds by [Blank] is used in living organism and converted to [Blank].
- 8.[Blank] is the total mass of a group of organisms.
- 9.Only [Blank] of energy will be passed to the next trophic level on the food chain.
- 10.An example of carbon fixation would be [Blank]
- 11.Partially decomposed peat when put under extreme [Blank], [Blank] , and [Blank] from above sediments can be transformed into coal.
- 12.The photosynthesis equation is:
- A.
Glucose + Oxygen = Carbon Dioxide + Water + Energy
- B.
Glucose + Oxygen = Energy
- C.
There is no equation
- D.
Oxygen + Carbon Dioxide = Water
- 13.Living organisms cannot perform which conversion:
- A.
Muscle contractions
- B.
Chemical to electrical energy
- C.
Chemical energy to cool energy
- D.
Nerve impulses
- 14.Heat resulting from cellular respiration makes an organism warmer.Cold-blooded organisms can become ______ active.
- A.
Less
- B.
More
- C.
Equally as
- 15.
- A.
Precipitation
- B.
Evaporation
- C.
Absorbing
- D.
Combustion
- 16.How is Water Vapour removed?
- A.
Precipitation
- B.
Evaporation
- C.
Absrobing
- D.
Combustion
- 17.
- A.
Burning of fossil fuels
- B.
Forest/grassland fires
- C.
Combustion
- D.
All of the above
- 18.Chlorofluorocarbons also known as _____ ,contain ____ atoms which can destroy ozone molecules resulting in holes in the ______ layer in the stratosphere.
- A.
CFC, Cl, ozone
- B.
ChFlCb, Cl, O3
- C.
Cl, O3, CFC
- D.
O3, CFC, ozone
- 19.Carbonic Acid is made up of:
- A.
Carbon Dioxide
- B.
Water
- C.
Oxygen
- D.
Carbon
- 20.Methanogenesis is carried out in many anaerobic environments such as:
- A.
Mud along shores in bed of lakes
- B.
Swamps
- C.
Guts of termites and ruminant animals
- 21.Methane is oxidized by:
- A.
CO
- B.
CO2
- C.
H2O
- D.
O2
- 22._____ and _____ have exoskeletons made out of Calcium Carbonate.
- A.
Crabs
- B.
Turtles
- C.
Molluscs
- D.
Coral Reefs
- 23.The 2 most significant greenhouse gases are:
- A.
Water Vapour
- B.
Methane
- C.
Carbon Dioxide
- D.
Ethanol
- 24.The 3rd and 4th most significant green house gases are:
- A.
Water Vapour
- B.
Carbon Dioxide
- C.
Methane
- D.
Nitrous Oxide
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