1. Directive 93/42/EEC on medical devices 1.1 Definition of medical devices a) devices - accessory The definition of the term medical device together with the definition of accessory is determinant for the delimitation of the field of application of Directive 93/42/EEC. A slight difference exists
Answers. It was Charles Darwin who highlighted the reproductive advantages of environmentally adaptive traits. One of the most important naturalists, he studied evolution and is the one who devised the theory that we and monkeys have the same ancestor.
Describe an example of the evolution of a prezygotic barrier and the evolution of a postzygotic barrier. Reproductive barriers evolve in many diverse ways. The bottleneck effect, the founder effect, polyploidy, and allopatric/sympatric speciation all contribute to the evolution of reproductive barriers.escribe five prezygotic reproductive barriers and give an example of each. -Habitat isolation: Two species encounter each other rarely, or not at all, because they occupy different habitats, even though not isolated by physical barriers (snakes).