Why it is good for a place to have a high biodiversity?
Because the organisms have a stronger interaction and food chain
with more speicies present. Also, say a species was in danger
because its food source was also dying out. With higher
biodiversity, there is a better chance the species can find some
replacement or change its food source. Also the saying "One man's
trash is another man's treasure" relates to bodiversity. SOmething
one species finds as unhelpful or nothing may be of vital
importance to another.