Living in a certain place, eating certain things, and being active at certain times all define an organism's ecological niche. For example, bats in central Texas are nocturnal and eat nocturnal flying insects. Having an ecological niche is critical to the survival of a species. Sudden changes in climate or major geological events can cause mass extinction of organisms in an area, which creates vacancies in ecological niches. What happens then?
A. other organisms adapt, evolve, and compete to fill them
B. The environment evolves in order to attract a variety of replacement organisms.
C. With no life to fill them the niches simply disappear.
D. The niches remain empty until another geological event reverses the damage.

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student,  including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as  edutech.