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WorksheetsChapter 4 biology IB
Total questions: 8
Worksheet time: 4mins
What could be represented by arrows 1, 2 and 3?
1 - death of consumers
2 - cell respiration in saprotrophs
3 - Cell respiration in producers
1 - death of consumers
2 - incomplete decomposition
3 - photosynthesis in producers
1 - cell respiration in saprotrophs
2 - incomplete decomposition
3 - photosynthesis in producers
1 - cell respiration in consumers
2 - cell respiration in saprotrophs
3 - Cell respiration in producers
Methanogens produce methane gas. What is the gas converted to in the atmosphere?
Carbon dioxide and oxygen
Ethanol and carbon dioxide
Carbon monoxide and ozone.
Carbon dioxide and water
Which characteristic of water vapour classifies it as a greenhouse gas?
It absorbs then re-emits some of the long wave radiation emitted by the Earth's surface
It prevents short wave radiation from reaching the Earth's surface
It absorbs UV radiation but does not re-emit it
It absorbs infra-red radiation but does not re-emit it
Which category of organisms is correctly described in this table?
A
B
C
D
Which conditions favor peat formation?
A
C
B
D
Which arrows indicate the flow of chemical energy?
I and II
I and III
II and III
I, II and III
The Australian pitcher plant (Cephalotus follicularis) is a green plant that traps and feeds on flies and other live insects. What is this plant’s mode of nutrition?
Autotroph and hetrotroph
Autotroph and detritivore
Saprotroph and hetrotroph
Consumer and saprotroph
Human activity leading to the emission of greenhouse gases may be a cause of global warming.
According to the precautionary principle, what should be done about greenhouse gas emission?
Analyse historical records from monitoring stations to see the trends in carbon dioxide emissions
Obtain more evidence by carrying out research on greenhouse gas emission
Take measures to lower greenhouse gas emission without further evidence
Develop strategies for coping with higher global temperatures
