Lactobacilli and humans: lactobacilli are a type of bacteria that live in our lungs and destroy many of the harmful microorganisms that enter our respiratory system. they are highly adapted to living in our lungs and can’t survive in many other habitats. a- commensakism b- parasttm c_ mutual ism

well 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  not be written on computer in this day and age.

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