lunes, 29 de noviembre de 2010

Summary#8 Blood System

This week I´m learning about the blood system. The blood is a mixture of liquid and cells.The blood has a pale-yellow liquid called plasma and is mostly water and contains nutrients. This nutrients include dissolved sugars, proteins, and gases.In the blood there exist three cells that are:
-Red blood cell: Are shaped like a doughnut without the hole and they contain the chemical hemoglobin wich carries oxygen around the body.
-White blood cell: They fight with the different diseases in the body when we are sick.
-Platelets:When we have a cut, platelets help stop the bleeding by forming clots.
I learn that the function of the circulatory system is to carry water and nutrients to the body. Also, I learn
that the organ of the circulatory system that pumps blood to the body is the heart. The three kinds of blood vessels that travels through the blood are the:
-arteries
-veins
-capillaries
 Arteries are more bright color O2
 Veins are more dark color CO2




Añadir leyenda






Summary#7 How Ecosystems Change

Ecosystems can change over time. If given a chance, nature has a way of changing an ecosystem or producing a new one. For example: Farmland to Forest
- Abandoned Farm-First Year: A community of crabgrass, insects, and mice invades the field and crop, corn grew.
-Second and Third Years: Tall weeds, asters, ragwood, tall grasses grow among the crabgrass. Rabbits and seed-eating birds move in.
-Four to Six Later: Pine trees begin to grow and shade the weeds, wich begin to die out.More birds join the community and small mammals like skunks, and opposums.
-Twenty-Five years later: Seeds of decidious trees such as maple, hickory,and oak sprout and take root. Larger animals like raccons, and foxes begin to visit.
-One hundred Years later: The forest is mostly decidious forest trees. Deers, raccoons, and foxes also live in the forest.
Also, I learn that exist pioneer species that is the first species living in the area also the pione
er community that is the first community in an area. I learn also  that a climax community is the final stage of succesion in an area. Also,that the gradual replacement of one community by another.


pionner specie


forest


ecological succesion

pioneer community












domingo, 21 de noviembre de 2010

In what biome I would like to live?

I would like to live in the decidious forest because it has different seasons that are:
-decidious forest in autumn
-decidious forest in spring
-decidious forest in winter
The most recognized is decidious forest in autumn. Other reason is because in autumn I would like to see the leaves falling down, in spring see the flowers and trees sprouting, in winter play with the snow. Also, because I can see different animals that I never see on my life. Also, because I can experiment other climate and other beautiful biome.

spring

autumn










 





winter
decidious in spring





jueves, 11 de noviembre de 2010

Summary#6 World Biomes

The World Biomes is divided in two parts that are: land and water biomes.The Land biome is divided in six that are: tropical rain forest, decidious forest, taiga, tundra, grassland, and deserts. Example:Sahara Desert. Next, we go to the water biome that is divided in two: fresh water and salty water.The fresh water is divided in three categories that are: Plankton, Nekton, Benthos.
Plankton: organisms that float on the water.
Nekton: are organisms swim through the water.
Benthos: are bottom-dwelling organisms
The salty water is divided in two parts the internal and open ocean. The upper region is from 0 to 200 depth.The down is from 1000 to 2000 or more depth.

land biome


water biome

water biome




Sahara Desert


lunes, 25 de octubre de 2010

Summary#5 Surviving in Ecosystems

Organisms can help or hinder the survival of other organisms. Animals are important because they control an population, some animals adapt to their environment like the polar bears because they have skin, fur, claws and other things that makes him to adapt to their environment, but if they go here to Panama they would die. Also, the penguins if they go to the desert they could die because they are not adapt to other environments. We don´t have fur or claws but we have the brain and intelligence to adapt and  know  what we have to do and we don´t use our instinct  like animals. Now we are going to talk about the symbiosis, the symbiosis is a relationship of two kinds of organisms over time.They are three types of symbiosis that are: mutualism, mutualism is two organisms benefit and helping by each other , one example is the yucca moth and the yucca tree, also commensalism, commensalism is two organisms one is benefit and the other is not harmed and not benefit, one example is the anemone and the clown fish, also the parasitism, parasitism is two organisms one is harmed and the other is benefit, one example is the flea and the dog also the human and mosquitoes.

yucca moth

commensalism
                                                                                                                                                                                    

yucca tree


flea
                                                          
                                                   



mutualism











parasitism



parasitism

sábado, 23 de octubre de 2010

Summary#4 Lifes of Cycles

There are many types of  cycles of life. But the most importants are water cycle, carbon cycle, and nitrogen cycle. The water cycle is the continuous movement of water between Earth´s surface and the air, it starts with the evaporation, next with the condensation  that includes precipitation, then the feezing and finally the melting  and again the evaporation. The carbon cycle  includes the plants the living things and some gases like carbon dioxide and oxygen.First, the humans, fire and cars and other things that contains CO2 give CO2 to the plants that plants need to grow, then the plants give us O2 that is their waste that we need to live and continues the process.And finally, the nitrogen cycle, the nitrogen is one of the most abundant gas on the air and trhe most needed to us. It starts with the air that goes to the soil or roots and it mix with the ammonia and then some bacterias can use nitrogen from the air to make nitrogen-containing substances called nitrites and other bacterias can turn nitrites to nitrates. And then the nitrogen compounds goes to the air other time and continues the cycle.

nitrogen cycle
                                                                                           

carbon cycle

water cycle


                                                 











domingo, 17 de octubre de 2010

Summary#3 Food Chain and Food Web

The Food Chain has to do with energy and the Food Web has to do with eating.The Food Chain is the path of energy in food from one organism to another , it starts always with the Sun, then with a plant that contains chlorophyll and continues with animals eating each other.The Food Web is the overlapping food chains in a community, it is divided on two producers and consumers.The producers on land include grasses, trees, and all other organisms that use the Sun´s energy to make their own food.The consumers get energy from the food made by organisms.Consumers can be grouped according to the type of food they eat that are herbivores, carnivores, and omnivores.

food web
food chain

Summary#2 Living Things and their Environment

  An ecosystem is all the living and nonliving things in an area interacting with each other.The ecosystem are divided in two groups that are biotic and abiotic.The biotic group means living things and the abiotic group means non- living things.The abiotic factors include temperature, water, minerals,light, sunlight, air, climate,and soil.The biotic factors include organisms like the animals,plants, fungi,algae, protists,and bacterias in an ecosystem. The virus are not considered biotics because they have to be in other place to be alive.All of them are divided on consumers and producers.


virus

ecosystem

Summary#1 Energy Resources


Corn
Energy is a source of power that permit us to be awake.All the organisms, plants, also the humans and the protists and others use always energy.The humans use the energy the 24 hours, but we use less energy when we are sleeping, but we use it. The humans use coal, oil, natural gases and other sources that contaminates and pollutes the environment  that is call "fossil fuels" that produces gasoline for cars and other machines.The coal, natural gas, and oil are called fossil fuels because they are composed of fossil fuels.In the world exist also alternative energy sources like water, solar, tidal, geothermal, wind and other energies that the good thing of them is that they "DON´T POLLUTE THE ENVIROMENT!!!".To end, Brazil is the 1rst country using corn´s methane that doesn´t contaminate the  Earth.


Water energy

Eolic Energy

Geothermal Energy



Brazil´s Flag









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Solar Energy


Seguidores