is the interactions between different biological species. The symbiotic relationship may be categorized as mutualistic, commensal, or parasitic in nature
Some symbiotic relationships are obligate, meaning that both symbionts entirely depend on each other for survival
Mutualism
Mutualism is any relationship between individuals of different species where both individuals derive a benefit
Commensalism
Commensalism describes a relationship between two living organisms where one benefits and the other is not significantly harmed or helped. It is derived from the English word commensal used of human social interaction.
Parasitism
A parasitic relationship is one in which one member of the association benefits while the other is harmed
chavez:D blog..
Thursday, May 19, 2011
the sandhill & whooping cranes ;)
is the tallest North American bird. the whooping crane is an endangered crane species the bird is named for its whooping sound.
the adult whooping cranes are white with a red crown and a long dark pointed bill immature whooping cranes are pale brown.
The whooping crane was declared endangered in 1967. Attempts have been made to establish other breeding populations in captivity.
is a large crane of North America and extreme northeastern Siberia. The common name of this bird is like the Platte River, on the edge of Nebraska's Sandhills in the American Midwest. This is the most important stopover area for the Lesser Sandhill Crane (Grus canadensis canadensis), with up to 450,000 of these birds migrating through annually.
in the toop of his head is red when they are adults but when they are young doesnt have it.
The sandhill crane's large which is 6–8 feet when fully grown, makes this a very skilled soaring bird similar in style to hawks and eagles.
IMIGRATION
During the mass emigration from Italy during the century between 1876 to 1976, the U.S. was the largest single recipient of Italian immigrants in the world. However, their impact was not as great as countries like Argentina and Brazil. That was due to the fact that hundreds of thousands of immigrants from nations all over the world were migrating to the U.S. at the same time and American born natives already made up the majority ethnic group. The Italians did play a major role though, socially with individuals rising to national stature in many different fields
The mass emigration from italy betwen 1876 to 1976 the U.S. was the largest single recipient of italian immigrants in the world. Their impact wasn't a great as countries like argentina & brazil. that was due to the fact that thousands of immigrants from nations all over the world were migrating to the U.S. at the same time & America born natives already made up the majority ethnic group
HOLY WEEK :D
the last week of Lent and the week before Easter. The religious holidays of Palm Sunday, Holy Thursday and Good Friday, and lasts from Palm Sunday in the Eastern, Lazarus Saturday until, but not including, Easter Sunday, as Easter Sunday is the first day of the new season of The Great Fifty Days.
ACTIVITIES: antigua guatemala has a lot of activities because is a guatemala tradition as the procesiones is like a parade but
FOOD: tamales, chuchitos, tostadas, are the food that usually people eat when they see the procesion or people eat canillitas de leche as a candy or something else that they want to eat (:
PLACES: people often go to antigua guatemala because they want to see the procesiones and more thing that guatemala has
Tuesday, April 5, 2011
Yelloow feeveer :S
Yellow fever
Yellow fever virus
Yellow Fever is a disease that it is transmitted person per person by a mosquitoe named aedes aegypti, this species in particular lives in the jungles of Central, South america, the low parts of asia, and the congo jungle.
The symptoms
The symptoms are very marked so as fever, terrible chills and the turn of the eyes to yellow.
Prevention
You need to cover the large amounts of water near your house, clean the spaces were the amount of water is considerable.
Thursday, March 3, 2011
survival skill courses.
survival skill courses
survival skills are techniques that a person can use in a dangerous situation to save his life or the others life. The techniques general provide the basic necessities for a human life as water, food, habitat and other things that may help to survive think straight, to signal for help, to navigate safely, to avoid unpleasant interactions with are ten basic ideas that ancien
t humans had been using for thousands years so these skills are part from the history
woodland survival crafts
Bushcraft and survival are activities to provide basis techniques to help people to understand skills to survive, work in team and personal development, and environmental issues.
http://www.woodlandsurvivalcrafts.com/
Introductory Bushcraft
In this course will be learn leave to participate with a foundational understanding in many core bushcraft survival skills.
Family Bushcraft
For the whole family. Kids, will be using his natural inquisitiveness and eye for the adventure
Father & Son Bushcraft Adventure
Father & Son Bushcraft Adventure
This is designed to have father & son time with an exciting and creative adventure in a wild woodland environment.
Friction Firelighting
Creating fire by friction is something of a speciality of Woodland Survival Crafts founder Dave Watson.
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