Biologist taking leaf sample putting into microscope
Biologist splecialist taking with tweezers green leaf sample
Biologist taking green leaf sample putting under microscope
African researcher taking green leaf sample from petri dish putting under microscope
Man and woman watering and taking care of plants with hose and pot in the garden.
Caring for plants together in a hothouse
Caring for plants together in a hothouse
Ecologist sampling water from the river to water quality tester and peek into
GOA, INDIA - 21 JANUARY 2015: Men taking water out of a boat in Goa.
Ecologist sampling water from the river with test tube
Ecologist sampling water from the river to water quality tester and peek into, Biologist wear protective suit and mask collects sample of waste water from industrial for pH meter, problem environment
Ecologist sampling water from the river to water quality tester and peek into, Biologist wear protective suit and mask collects sample of waste water from industrial for pH meter, problem environment