Living World - Ecosystems Flashcards
1
Q
ecosytem
A
interactions between living things + non-living things in 1 location
2
Q
biome
A
large regions of the world with similar living organisms
3
Q
abitiotic
A
non-living things
4
Q
bitiotic
A
living things
5
Q
consumer
A
creature that eats plants/animals
6
Q
decomposer
A
an organism that breaks down dead tissue, then recycled to enviornment
7
Q
foodchain
A
hierarchy of plants and animals with food
8
Q
food web
A
connections between different organisms that are each other’s food sources
9
Q
nutrient cycling
A
- organisms extract minerals needed for growth from soil/water
- pass them on thru food chain
10
Q
producer
A
organism that absorbs energy thru photosynthesis
11
Q
example
small ecosystem
A
epping forest
* close to london = accesible
* biodiverse
12
Q
deciduous tree
A
loses leaves during autumn = conserving energy
13
Q
biomass
A
- living or recently dead matter
- biomass decreases as food chain goes up bc it is lost from feces, respiration etc
14
Q
factors disrupting the food chain
A
- droughts
- storms
- forest fires
- deforestation
- climate change
= decrease in consumer, soil being washed away when exposed
15
Q
biome distribution
altitude
A
- temperatures decrease 0.5C/100m up
- tough grass replaces trees @ steep mountainsides
