It is a parasitic relationship, where parasite is benefitted and the host if harmed. Example of this includes, tapeworm which attaches themselves onto the intestine of the animals like pig, cow wtc, and use their undigested food, and cause nutrition deprivation in them.
What materials were used to build the Golden Gate Bridge? The main materials used to make the Golden Gate Bridge were 75,293,000 kg of steel; two main cables, each made of 27,572 strands of wire; 600,000 rivets in each of the towers; â¦ and concrete. The steel was made in New Jersey, Maryland and Pennsylvania and shipped through the Panama Canal. 126 people found this useful.
Not any more. The 4,200-foot long suspension span of the Golden Gate Bridge was the longest span in the world from the time of its construction in 1937 until New York City's Verrazano Narrows Bridge was opened on November 21, 1964.It is 60 feet longer than the Golden Gate Bridge.The Verrazano was the longest single span bridge until July 17, 1981, when the Humber Bridge in England, spanning the Humber River, was opened for traffic with a main span of 4,626 feet.he fabricated steel used in the construction of the Golden Gate Bridge was manufactured by Bethlehem Steel in plants in Trenton, New Jersey and Sparrows Point, Maryland and in plants in three Pennsylvania towns: Bethlehem, Pottstown, and Steelton.