Biomes Flashcards
What can influence the global distribution of biomes
Temperature and rainfall
What type of biome do we live in
Deciduous forest/ temperature
List 4 ways in which our biome differs from a desert biome
- seasonal variation
- mild temperatures
- high rainfall
- larger mammals and greater biodiversity
What are biomes
Biomes are the various regions of our planet as distinguished by their similar climate, fauna and flora.
Are food chains efficient or inefficient and why
Inefficient because 90% of energy available is lost each time the food chain goes on
Give two facts about a pyramid of productivity/energy
- It is always pyramid shaped
- Energy decreases at each feeding level
Describe going along a food chain
- Energy gets Lost
- Animal size gets Bigger
- Biomass gets Less
What 4 ways does energy get lost in a food chain
- respiration
- movement
- faeces
- uneaten parts
What is the length of food chains
They tend to be only 3 or 4 organisms long because there is seldom sufficient energy to support any more trophic levels