Ekolog z żarówką i podniesionym palcem w górę w przyrodzie - Zdjęcie stockowe & obraz

Ecologist with bulb and raised finger down on nature

Chemist with bulb and raised finger sits on river bank

Biologist with bulb and finger down sits on river bank

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

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

Biologist with test tube in mask, protective suit, finger down, sits on river bank

Ecologist looks at flask with water sitting on river bank

Laboratory assistant with test tube, thumb up, blurred background

Photo biologist takes water for examination in pond

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

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

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

Laboratory assistant with test tube in hand on river bank

Man in protective suit wearing pritected rubber gloves.

Man in protective suit, medical mask, goggles with arms crossed. Isolated in studio on gray background.

Man in protective suit, medical mask, goggles with arms crossed.