The IUCN's Red List is .A. a list of unidentified speciesB. an updated list of species facing unusually high risk of extinctionC. a scorecard of international failures at conservationD. an identification list of known speciesE. a list of ecologically damaged ecosystems

B. an updated list of species facing unusually high risk of extinction

Explanation:

The IUCN red list is used to find out the status of biodiversity. The IUCN red list of threatened species is an updated list of those species who are facing a high risk of extinction.

This list allows the wildlife conservationist, ecologist to know the current status of the biodiversity of the world and make ways to prevent or slow the extinction of these species. More than 112,400 species are currently present under this red list which includes species of mammals, amphibians, birds, corals, etc. Therefore the correct answer is B.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.