Afrikaner putzt Dunstabzugshaube und Glastisch zu Hause, Backsteinwand Hintergrund. - Stockfoto & -bild

Scientist examining liquid in test tube in laboratory, researchersitting at his workplace wearing lab coat and rubber gloves.

Black male cleaning a glass table at home.

Young man technician with labcoat and glasses working

Corona Virus SARS-CoV-2 vaccination concept : man in pink studio wall background.

Corona Virus SARS-CoV-2 vaccination concept : man in pink studio wall background.

Group of school girl kids with teacher in school laboratory making experiment observing the chemical reaction with the dye with vinegar, and soda volcano wearing white gown uniform glass.

Group of school girl kids with teacher in school laboratory making experiment observing the chemical reaction with the dye with vinegar, and soda volcano wearing white gown uniform glass.

African american man scientist in PPE suite uniform showing medicine liquid vaccine vial bottle coronavirus studio pink wall.

Group of school girl kids with teacher in school laboratory making experiment observing the chemical reaction with the dye, with vinegar and soda volcano wearing white gown uniform glass

Clever redhead school girl chemist in eyeglasses and white medical gown making science experiments chemistry , mixing different chemical solutions in laboratory classroom

Two blonde chemist school kid student little girls girlfriend sisters chemical experiment white medical gown classroom science.