6.3.1 a ecosystems Flashcards
(11 cards)
Define ecosystem
Made up of all the living organisms that interact with one another in a defined area and the biotic and abiotic factors present in that region
What does all ecosystems are dynamic mean?
They are constantly changing
What are biotic factors?
Living factors
What are abiotic factors?
Non-living or physical factors
What do biotic factors refer to?
Interactions between living organisms or organisms that have lived
What are the biotic factors?
Food
Space
Breeding partners
What are the abiotic factors?
Light
Temperature
Water availability
Oxygen availability
Soil factors
What are the three main soil types?
Clay
Loam
Sandy
What is clay soil type?
Fine particles
Easily waterlogged
Forms clumps when wet
What is loam soil type?
Different sized particles
Retains water but doesn’t become waterlogged
What is sandy soil type?
Coarse, well-separated particles that allow free draining
Does not retain water
Easily eroded