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.

Summary 7 How Ecosystems Change

In this summary we will talk about of how the ecosystems change.
An example is the Farmland to forest. 
First an abandoned farm the first year 
a comunity of crabgrass, insects and mice,
invades the field were corn once grew.
The seccond and third year
Tall weeds such as asters, ragweed, and tall grasses grow among the crabgrass. It can easily survive in the shade cast. The rabbits and seed eating bird move in.
Four to Six Year Later
The hot, dry field of tall weeds provides a perfect environment. More birds join the community.
Twenty Five Years Later
A pine forest has replaced the old farm field. Larger animals like raccoons and foxes begin to visit.
one Hundred Years Later
The forest is now mostly decidius trees. These trees are habitats of many different kind of animals.
Examples of pioneer species are weed, birds, insects, plants

Summary 4 Cycles of life

In this topic we will learn three water cycles.
In the water cycle first occurrs the evaporation were the heat from the sun and is absorbed by the ocean, lakes etc. This heat makes the water evaporate. Next the condensation that is when the moist air rises higher and higher, it cools and it changes from vapor to tiny ice crystals. Then the precipitation when eventually the droplets or ice crystals become so longer and heavy that they can't stay in the air and they fall as precipitation rain, snow and others.
The worms, crickets, cockroaches, bacteria and fungi are the organism can break down dead wood.
In the carbon cycle the photosyntesis recive co2, the car exhaust carbon dioxide, the decaying matter give co2 like the animals and also recive oxygen.  The plants give oxygen.
In the nitrogen cycle begins with the decomposers, continue with the ammonia, nitrites, nitrates then the nitrites and ammonia in the roots of a three. Finally it go up to the air.
Many materials are recycle. one of the material mostly thrown in the garbage is the paper.
          

summary 3 Food Chains and Food Webs

The changes in a population can affect several other population in the same ecosystem. Every population needs energy in order to survive. 
A food chain shows one population that eats or is eaten by another population. A food web shows how one population can be part of more than one food chain. Both have producers that includes grasses, trees, and all the organisms uses Sun's energy to make their own food. In the ocean main producers are the algae. The organism that can't make their own food are called consumers. The consumers get energy from the food made by others oraganisms. Plants capture energy from the sunlight. When you eat a plant you capture some energy. The producers get enrgy from the Sun. Consumers get it from the food they eat.
An energy pyramid shows that less food and energy is available as you go from the base to the top of the pyramid.
People is affected by red tide. A person who eats poisoned shellfish can become very sick. The poisons produced by fire algae seem to onlyaffect the nervous systems of complex animals like fish, birds, and mammals
                                          Food Web

Summary 2 Living Things and Their environment

The environment is compose by many living and nonliving things. In an ecosystem all the living and nonliving things interact with each other. The nonliving parts of an ecosystem are called abiotic factors. Some examples of abiotic factors are the light, water, soil, temperature, air, and minerals. Also the living things part of an ecosystem are name biotic. Some examples of them are the plants, animals, fungi, protist, and bacteria.
Many kinds of animals and plants live in a prairie. A prairie is a region of tall grasses. It may be flat or hilly grassland. 
Birds like longspurs and horned larks, as 300 others kind of birds, still live in Blackland Prairie. Raaccoons, opossums, coyote, red bats, bobcats, mountain lions, gray wolves, and black bears live there too.
The place where an organism lives is called its habitat. A species niche includes many factors.
Most of the Blackland prairie has been changed into cropland.