Lets do experiment. Profile picture of competent scientist that pressing lips while taking test tube - Stock Photo & Image

Using microscope. Attentive bearded man expressing positivity while working in laboratory and looking forward

Let me have a look. Selective focus on a serious mature laboratory worker sitting at a microscope and taking one of the test tubes containing chemical liquid.

Need to take decision. Confident bearded man pressing lips and being very serious while working with microscope

Let me see. Confident male scientist sitting at a microscope and looking at a set of test tubes with different liquids while working in a lab.

Scientists at chemical laboratory during work

Rubber gloves. Positive scientist holding pipette in left hand and dropping reagent into test tube while looking at camera

Daily routine. Low angle shot of a mature gentleman using a pipette while mixing chemical liquids and conducting chemical experiment.

Pouring down. Attractive medical worker wearing white smock and blue rubber gloves bowing head while looking at test-tube

Love my job. Competent scientist sitting in semi position and bowing head while looking into ocular

Good job. Attentive blonde bowing head while examining reagents and sitting at her workplace

Close up of test tubed in a lab while professional scientist working in microbiology project