Low angle of African American guy using microscope, sitting at desk on biology lesson in afternoon
Chest-up of long-haired Caucasian girl using microscope, writing in notebook, sitting at desk next to Biracial guy who dissecting frog on biology lesson in afternoon
High angle of Caucasian girl looking into microscope, writing in notebook, sitting at desk next to Biracial guy who dissecting frog on biology lesson in afternoon
Midsection of hands of cropped couple sitting at desk indoors in afternoon, using portable computer
Woman researcher uses a microscope in biology research center
Chest-up of short-haired Caucasian girl sitting at desk on anatomy lesson, using tablet computer in afternoon
Low angle of African American guy in eyeglasses sitting at desk on anatomy lesson, using tablet computer in afternoon
Midsection of cropped Black woman and man sitting at desk in office in afternoon, using laptop computer, business documents, talking
Midsection of cropped Black woman and man sitting at desk at home in afternoon, using portable computer, calculator, bills, talking
Medium long of diverse high school students standing around male teacher who sitting at desk in classroom, using laptop computer in afternoon
Low angle of short-haired Caucasian girl sitting at desk on anatomy lesson, using tablet computer, writing in notebook in afternoon
Asian teacher expanding to student in biology class with microscope .