Biology Revision - Energy And Biomass In Food Chain

15 Questions | By Izzy_ | Updated: Sep 5, 2022 | Attempts: 183

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Biology Revision - Energy And Biomass In Food Chain - Quiz

B1. 5

Questions and Answers

1.

Every time you move up a stage (trophic level) in a food chain there is...
- A.
  
  More energy
- B.
  
  Less energy
- C.
  
  More biomass
- D.
  
  Less biomass
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.
  
  Total mass when wet
- B.
  
  Total mass including water
- C.
  
  Total mass after rain
- D.
  
  Mass of water in organism
11.

Dry mass =
- A.
  
  Mass after rain
- B.
  
  Mass when normal - not wet
- C.
  
  Total mass exluding water
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