miércoles, 1 de diciembre de 2010

Summary 8 Blood System

In this summary we will talk about the blood system.
There are different types of blood like the type A -type B -type AB -type O.
The red blood cell function is to transport oxygen and nutrients
The white blood cell fight desease.
The platelets stop bleeding, cover injures of bleeding.
The veins transport the blood to the heart. The arteries transport blood to all the body.
The function of the circulatory system is to transport nutrients and oxygen to all the body.

Summary 5 Surviving in ecosystem

In this summary will talk about limiting factor, adaptation, symbiosis, mutualism, paratism, commensalism.
Some of the limiting factor are nonliving like the sunlight, wind, and water. Anything that controls the growth or survival of a population is called a limiting factor.
Plants can survive in these conditions because they have developed special characteristic. Characteristic that help an organism survive in its environment are called adaptation.
In the nature a relation ship between two kinds  of organism that lastss over a period of time is called symbiosis. When a relationship between two kinds of organisms benefit both of them it is called mutualism.

Summary 6 Places to Live Around the World

In this summary we will talk about the biomes.There are 8 biomes.
The desert location: midlatitudes, climate: generally very hot days, cool night, less precipitation.
Soil:poor in animal and plant decay products but often rich in minerals.
Plants: none to cacti, yucas, bunch etc.
Animals: rodents, snakes, lizards, insects and other.
The tundra location: High northern latitudes.
Climate: very colod, harsh, and long winters short and cold.
Soil: Nutrient-poor,permafrost layer a few inches down
The Tundra, Grassland, Decidius forest, Taiga, and Tropical Rain Forest.