energy transfer efficiency and how to improve it Flashcards
1
Q
where is the most energy loss in an ecosystem and give potential reasons why? (3)
A
between the sun and producer
- light is the wrong wavelength
- light strikes non-photosynthetic region
- energy is lost as heat
2
Q
between the producer and primary consumer how is energy lost? (4)
A
- respiratory loss e.g energy for plants metabolism i.e active transport
- lost as heat
- not all of plant is eaten
- some food is not digested (poops)
3
Q
between the primary consumer and secondary consumer how is energy lost? (4)
A
- respiratory loss (primary consumer uses energy for metabolism)
- lost as heat
- not all animal (1’ consumer) is eaten (bones)
- some food not digested
4
Q
how can you shorten the food web?
A
reduce competition so plant has more energy to create biomass
5
Q
effect of fertilisers
A
prevent growth limitations due to lack of nutrients
6
Q
reducing respiratory loss (give example)
A
stopping cattle moving or keeping them inside in winter
- reduces respiration for movement/heatloss prevention