portrait group multi-ethnic scientists standing smiling happily and cross one's arm in laboratory,conducting scientific

woman people technology man doctor interior medical team blue work portrait medicine science teamwork laboratory research cross chemistry biology chemical microbiology biotechnology microscope scientific biochemistry experiment screen equipment chemist development genetic test tube scientist arm lab analysis researcher multi ethnic professional bright dropper female group happily investigation male senior smiling standing multi-ethnic scientists one#39aph39#s conducting experiments concept develop