In mitochondrial electron transport, what is the direct role of o2

The answer is to function as the final electron acceptor in the electron transport chain. It is the only place that O2 partakes in the cellular respiration is at the end of the electron transport chain as the final electron acceptor. Oxygen's high affinity for electrons safeguards its success in this role. Its assistances to driving electron transport, forming a proton gradient, and synthesizing ATP are all indirect effects of its role as the terminal electron acceptor.

Crossing over creates new combinations of genes in the gametes that are not found in either parent contributing to genetic diversity

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.