9 Ecosystems And Mating Flashcards
What is an ecosystem made up of?
Living and non- living parts
What is another word for living?
Biotic
What is another word for non- living?
Abiotic
What are the different levels of organisation in an ecosystem?
Individuals
Populations
Communities
What is the smallest part of an ecosystem?
Individual
What makes up a single species?
Populations of individual organisms
What are communities made up of?
Populations of different species
What are examples of ecosystems?
Savannah
Marine
What do organisms need from ecosystems to be able to survive and reproduce?
Resources from abiotic and biotic parts of an ecosystem
What resources do plants often fight for?
Water
Mineral ions (minerals)
Light
Space
What do animals often compete for?
Food
Mates
Territory
Why do organisms compete?
For resources
What is species interdependence?
One species may depend on another for different things.
What are examples of species interdependence?
Seed dispersal
Food
Shelter
Pollination
When is a community stable?
balanced:
- Species
- Environmental factors
Population sizes constant
What do food chains show?
Feeding relationships and energy flows within a biological community
What do food chains nearly always begin with?
A producer that makes its own food
What is an example of a producer?
Green plant or algae
- can photosynthesise
What eats producers?
Primary consumers
What are primary consumers eaten by?
Secondary consumers
What are secondary consumers eaten by?
Tertiary consumers
What is at the top of the food chain?
Apex predator
What process can producers carry out?
They can make their own food.
What are food chains made up of?
Predators
Prey
Apex predators
Decomposers
