Summary #7/ How Ecosystems change.

How Ecosystems Change

• This topic is about Ecological succession that are the gradual replacement of one community by another.This topic also is about
• Pioneer species:The first species living in an area.Ex:Birds, insects, weeds.
• Pioneer community:The first community living in an area.Ex: Insects Community, Weeds Community, Birds-eating insects community.
• Climax Community: The final stage of succession in an area, unless a major change happens.Ex: Forests.

Forest

Summary #6/ Places to live around the world.

Places to live around the world.

 This topic is about places to live around the world this includes the biomes, biomes are one of Earth's large ecosystems, with its climate, soil, plants, and animals.there are 6 Biomesthat are taiga that havea cool climate, Tundra that has a cold climate, Desert that have a hot climate and sandy or rocky soil, Decidious Forest that have many kinds of trees that lose their leaves in each autumn, and Tropical Rainforest that havbe a hot,humid climate and is a biome near the equator, with much rainfall and a wide variety of life.Also exist 2 types of water biomes salty water biome and fresh water biome.

Summary #5/ Surviving in ecosystems.

Surviving in Ecosystems

This topic is about Limiting factor, limiting factor is anything that controls the growth or survival of an organism or population.Also is about adaptation, adaptation is a characteristic that helps an organism survive in its ecosystem.And this topic also includes Symbiosis that is a relationship between 2 kinds of organisms over time.There are three examples that are:



• Mutualism, that is two organisms benefit each other.Ex:Yucca tree<---->Yucca Moth
• Parasitism, one organism benefit and the other harms.Ex:Dog--->Flea
• Commensalism,two organism that benefit each other not harming but protecting.Ex:anemones<--->clownfish.

Summary # 4/ Cycles of Life.

Cycles of Life

This topic was about the Water Cycle,It evaporates, Condenses, and moves from one part of the environment to another.In other words the water is recycled.Another Cycle of this topic is the Carbon Cycle, this Cycle is the continous transfer of carbon between the living things and the atmosphere.One of the elements that make up all the living things is carbon. Nature recycles carbon, and it is used by all organisms.There is also anoither cycle that is called the Nitrogen Cycle, that is the transfer of nitrogen from the atmosphere to plants and back to the atmosphere and directly to into plants again.The Nitrogen Cycle is the way nitrogen moves between the air, soil, plants, and animals.

Summary # 3 / Food webs and Food Chains

This theme is about Food chains and Food webs;the food chains are the path of energy in food from one organism to another.A food chain does more than show who eats whom.Eating is how an animal gets energy.The food chain starts with the Sun,then with the predator,then with the prey and Finally with the scavenger.A food web is a model that shows all the possible feeding relationships between organisms living in an ecosystem.

                                                                         Food chain

                                                              

Summary # 2 / Biotic Things and their Environment :)

Biotic Things and their environment

This theme was about the ecosystem the ecosystem is form from biotic and abiotic things.In the biotic group we can find animals,plants,fungi,protist,bacteria.In abiotic we can find rocks,water,temperature,minerals,soil,wind,etc.In an ecosystem we can find populations or communities.The ecosystem have habitats for the organisms living there.The habitat give the plant or animal with food and shelter and changes them to produce and bring up their young in safety.



Summary # 1 / Energy Resources :)

Energy Resources

There are alternative energy resources that are sources of energy other than the burning of a fossil fuel.Fossil fuel is an energy resource that pollutes the planet,there are another kinds of energy resources that don't pollute our planet that are: Water energy,Wind energy,Geothermal energy and Solar energy.The other alternative energy that can be used is the biomass that is plant animal or matter waste that can be use as a source of energy.Examples:Modern water wheels use water energy,Harnessing the wind use wind energy,Earth's furnace use geothermal energy.