standard 4: model with mathematics. Expand +. classroom observations: Teachers who are developing studentsâ capacity to model with mathematics move explicitly between real-world scenarios and mathematical representations of those scenarios.
exists and is an alternate of . Functional extinction means that there are not enough live animals (or animal protoplasm) of a certain species for the species to breed and survive.
1 Endangered refers to a species that is in danger of extinction throughout all or a significant portion of its range.  2 Threatened refers to a species that is likely to become endangered within the foreseeable future throughout all or a significant portion of its range.ccording to the US Endangered Species Act 1  : Endangered refers to a species that is in danger of extinction throughout all or a significant portion of its range.  2 Threatened refers to a species that is likely to become endangered within the foreseeable future throughout all or a significant portion of its range.