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1.2 Ecosystems

Chapter 1.2 Science 10
by

Neil Ryan

on 16 September 2016

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Transcript of 1.2 Ecosystems

Biotic
Interactions

And Finally
Ecosystems
30
Photo credits: 'horizon' by pierreyves @ flickr
a part of the biome in which abiotic components interact with biotic components
The abiotic components
include habitat, nutrients, photosynthesis and soil
Habitat
the place in which an organism lives
Nutrients
substances such as nitrogen and phosphorus that are required by organisms for energy, growth and development.
Large
or
Small
Photosynthesis
a chemical reaction that converts
solar energy into chemical energy
that can be used by plants.
Soil
provides nutrients for plants
30
The biotic components
include species,
population and
community
Species
a group of closely related organisms that can reproduce with one another.
Population
all members of a particular species within an ecosystem
.
Community
all the populations of different species that interact in a specific area or ecosystem
Biosphere
Ecological Hierarchy
Biome
Ecosystems
Communities
Populations
Individual
Symbiosis is the interaction between two
different species within a population.
There are three types of symbiotic relationships.

Commensalism – Mutualism - Parasitism
Commensalism
a symbiotic relationship where one species benefits and the other is unaffected.
e.g. – barnacles and whales.
Mutualism
a symbiotic relationship in which both species benefit.
e.g. – bees and flowers
Parasitism
symbiotic relationship in which one species benefits and the other is harmed.
e.g. – hookworms and dogs.
More Key Terms...
Niche
Competition
Biodiversity
Predation
the role an organism plays in its environment. A niche includes the way in which the organism contributes to and fits into its environment.
Organisms thrive when they can occupy a niche that other organisms can not
an interaction where organisms compete for the same resources in the same place at the same time.
Competition limits populations.
An interaction where the predator eats the prey.
Adaptations exist that benefit predators as well as prey.
Predator and prey populations grow and shrink together
The variety of all living species of organisms on Earth or within an ecosystem.
The biodiversity of an ecosystem is a good
indicator of the health of an ecosystem
What does Biotic mean?
The living components of an ecosystem.
What does Abiotic mean?
The non-living parts of an ecosystem.
a group of closely related organisms that can reproduce with one another.
What is a species?
Symbiosis is the interaction between two
different species within a population.
What is Symbiosis?
What are the 3 types of symbiotic relationships?
Commensalism, Mutualism and Parasitism
Where do we get our nutrients from?
anchors plants and stores water
provides a habitat for organisms
These all make up an...
What is an Ecosystem?
Full transcript