Biólogo em respirador com tubo de ensaio, dedo para baixo, sobre fundo desfocado - Banco de fotos e imagens

Ecologist in respirator with test-tube on blurred background

Chemist in respirator with test-tube, thumb up, on blurred background

Photo of ecologist in mask, protective suit with test tube, thumb up, on river bank

Lab assistant with test tube, finger down, blurred background

Laboratory assistant with test tube, thumb up, blurred background

Coronavirus testing. Negative result. The doctor holds a blood sample in his hands and shows a thumbs up sign. Selective focus.

Photo of biologist in mask, protective suit with test tube, finger down, on river bank

Ecologist with test-tube and mask, protective suit, finger down, sits on river bank

Chemist looks at flask with water sitting on river bank

Chemist with bulb and raised finger sits on river bank

Photo ecologist from back and in protective suit with flask with water in hands on river bank

Medical worker in protective suit, glasses, gloves with liquid soap in hands isolated on gray background in studio. Coronavirus epidemic

Ecologist looks at flask with water sitting on river bank

Photo biologist takes water for examination in pond

Photography of environmentalist for examination takes water in reservoir