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 has two main cables. Each is 7,650 feet long and contains 27,572 galvanized wires which are bundled into 61 strands. The total length of wire used in both main cables is 80,000 miles.Photos: Original Construction | Main Cable | Main Cable Painting.ain cable painting work will take place inside tent-like containment areas. This is a side-view sketch of the containment in position around a main cable. All photos are from the archives of the Golden Gate Bridge and may not be used without permission.