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.
The Golden Gate Bridge links the northern tip of the San Francisco Peninsula to Marin County. This suspension bridge is an iconic symbol of San Francisco, California. It spans the Golden Gate, the part of San Francisco Bay that opens to the Pacific Ocean.It took only four years to build and was opened in 1937 for traffic.The bridge itself was believed to be impossible to build but after almost 100 years of discussion it was completed.he Golden Gate Bridge is one of the Seven Wonders of the Modern World. The total length of the bridge is 8,981feet. It is 746 feet above the water. The roadway is hung by two cables. These cables are made of 27,572 strands of wire that pass through the two main towers.