Biology Revision - Energy And Biomass In Food Chain

15 Questions  I  By Izzy_
B1.5

  
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1.  Every time you move up a stage (trophic level) in a food chain there is...
A.
B.
C.
D.
2.  There is usually a fewer _________ of organisms as you move up a trophic level as well eg - 100 dandelions ... feed ... 10 rabbits ...which feed... 1 fox
3.  However this is not always true as 100 dandelions ... feed ... 10 rabbits ...which feed... 1 fox ... which could feed... 500 fleas therefore its often better to look at ___________ rather than numbers of organisms.
4.  Each bar on a pyramid of biomass = how much each level would 'weigh' if you put all the animals together. So the fox would have a much ______ biomass than the fleas 
5.  Food chains - 
  • Plant - primary ________
6.  Food chains - 
  • Plant - primary producer
  • _________ - primary consumer
7.  Food chains - 
  • Plant - primary producer
  • Herbivore - primary consumer
  • _______ - secondary consumer
8.  Food chains - 
  • Plant - primary producer
  • Herbivore - primary consumer
  • Carnivore - secondary consumer
  • Carnivore - _________ consumer
9.  Food chains - 
  • Plant - primary producer
  • Herbivore - primary consumer
  • Carnivore - secondary consumer
  • Carnivore - tertiary consumer
  • ___ carnivore - quaternary consumer
10.  Wet mass = 
A.
B.
C.
D.
11.  Dry mass = 
A.
B.
C.
12.  Respiration is the breakdown of _________ to release energy
13.  Energy losses are mainly due to...
  • _____ products - faeces and urine - not all food is digested and absorbed, some is lost in waste
14.  Energy losses are mainly due to...
  • waste products - faeces and urine - not all food is digested and absorbed, some is lost in waste
  • _____ production - in warm blooded animals - produced by respiration
15.  Energy losses are mainly due to...
  • waste products - faeces and urine - not all food is digested and absorbed, some is lost in waste
  • heat production - in warm blooded animals - produced by energy from respiration
  • m________ in animals - requires energy from respiration
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