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.
extinction. 1  the act of extinguishing. 2  the fact or condition of being extinguished or extinct. 3  suppression; abolition; annihilation: the extinction of an army. 4  Biology. the act or process of becoming extinct; a coming to an end or dying out: the extinction of a species. 5. Psychology. the reduction or loss of a conditioned response as a result of the absence or withdrawal of reinforcement. 6. Astronomy. the diminution in the intensity of starlight caused by absorption as it passes through the earth's atmosphere or through interstellar dust.