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.
slide 1 of 3. History Of Golden Gate Bridge The Golden Gate Bridge that was completed in 1937 is a suspense on bridge connecting the San Francisco Bay with the Pacific Ocean. The Golden Gate Bridge is considered to be a globally renowned representation of San Francisco and California. It is an engineering wonder created in 4 years due to the admirable human vision, persistence, and technical expertise. The weight of the bridge when built was 894,500 tons, length 8,981 feet, width 90 feet, and water clearance 220 feet.