B4.1.5 - Efficiency of biomass transfer Flashcards
1
Q
How much percent of biomass eaten by a horse gets turned into new biomass?
A
10%
2
Q
What are ways in which biomass is lost?
A
- Not all of an organism is eaten. For e.g. animal bones
- Some biomass is used in respiration
- Some parts of an organism cannot be digested as hair and teeth and are removed from the body in faeces
- Waste products produced by the body are lost through excretion
3
Q
What is egestion?
A
Removal of undigested waste from an organism
4
Q
What is excretion?
A
Removal of waste products from an organism
5
Q
Why do very few food chain have more than 4 trophic levels?
A
As not enough energy can be transferred to sustain life processes
6
Q
What is formula to calculate the efficiency of biomass transfer?
A
Efficiency of biomass transfer = (Biomass available after the transfer/ Biomass available before the transfer) x 100
