Living+Things+in+an+Ecosystem


 * ECOSYSTEM **


 * Habitats || **A place where plants and animals live is called a habitat** ||
 * Environment || **Everything surrounding an organism. It is made up of two parts of physical and biotic environment.**
 * (Physical environment consists of non-living factors in the surroundings such as sunlight, temperature, wind, oxygen, water current and pH of soil / water)**
 * (Biotic environment made up of all other plants and animals that an organism comes into contact with. Organisms in a habitat interact with other organisms. There are relationship of the predator-prey, mutualism and parasitism.)** ||
 * Ecosystem || **A large number of plants and animals can live in the same habitat. They formed habit together with the community of organisms living in it.**
 * e.g) Desert, Grasslands, Tropical Rainforests, Ponds, Streams, Rivers, Oceans, Mountains, Seashores.**
 * Microsystem - A tree trunk, A wall, A flower bed, A hedge**
 * Artificial ecosystems - An aquarium**
 * Balanced ecosystems - Ecosystems that they contain everything the organisms need to live on such as food, water, light, shelter for each organism.** ||
 * Biosphere || **The Earth - One big ecosystem** ||
 * Population || **Organisms of the same kind that live in a particular habitat.** ||
 * Community || **The different plant and animal populations living together in a habitat.** ||
 * **Ecology ** || **The study of ecosystmes. A branch of Science.** ||
 * Ecologist || **A person who studies ecology.** ||
 * Adaptation || **It happens when organisms are suited to their environment such having special features on their bodies or behave in certain ways to help them survive.**
 * Organisms that are poorly adapted will not survive.** ||


 * Task :** Give examples of population and community from a freshwater pond.

- Mutualism: **A relationship between 2 organisms which both organisms benefit in.** e.g**. Bees/Butterflies and Flowering plants, Sea anemone and the clown fish.** - Parasitism: **A relationship in which one organism benefits from and harms another organism. The organism that causes the harm is called a parasite.** e.g**. Fungi(mushrooms) and tree. Various parasites and the hosts.**
 * The biotic environment

Find definitions of keywords below
Food chains: Food webs: Producers: Consumers: Herbivores: Carnivores: Omnivores:

====**Food chains**** : __Energy__ flows within an __ecosystem__ when organisms feed on each other. The __flow of energy__ with an ecosystem can be represented by __food chains.__ In ecosystems, food chains are interconnected to form food webs.==== __Producer(green plants) -> Primary consumer(animal 1) -> Secondary consumer(animal 2)__ __Decomposers__ are organisms that feed on dead plants and animals and break them down into simpler substances and are also a part of food chains. [|Food chain] activity from aardman.com media type="youtube" key="w5w1SZRMm8A" width="560" height="315" [|Food Chains and Webs] [|Lammas Science] Published on 15 Nov 2012

**Food web**
A food web is simply a number of food chains joined together. It shows how the loss of one organism has an effect of other organisms in the food web.

[|Food webs] from BBC Bitesize Food chain and Food webs [|revision] and [|test] from BBC Bitesize