4,969 resultados para pruebas

  • 679-08173321

    Police evidence including finger print, DNA swab and results.

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  • 6113-07731171

    Students and teacher examining globe in classroom

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  • 698-07588271

    High school boy studying at desk in classroom

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  • 6124-08170783

    Publishers talking in sunny office

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  • 698-07611773

    High school girls reading books at table in library

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  • 698-07588242

    High school girl studying at desk in classroom

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  • 698-07611776

    Teenage girls reading book while using laptop at table in school library

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  • 649-07585091

    Female cell biologist holding a flask containing stem cells, cultivated in red growth medium, to investigate disease

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  • 698-07588361

    Female student studying on steps at university

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  • 649-08125921

    Scientist viewing sample on glass slide through microscope for medical testing

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  • 6113-08105399

    Portrait smiling casual businesswoman reviewing proofs with businessman in office

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  • 698-07588381

    Happy young university student relaxing on table in common room

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  • 649-07118819

    Portrait of scientist with dna molecular model

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  • 693-07912979

    Businessmen analyzing documents on wall in office

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  • 649-06353115

    Forensic scientist with gun in box

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  • 649-07585089

    Cell biologist holding a flask containing stem cells, cultivated in red growth medium, to investigate diseases

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  • 698-07588013

    Thoughtful girl looking away while studying at home

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  • 632-08130287

    Scientist examining test tube

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  • 679-06673851

    Performance testing. Athlete running on a treadmill while his performance and oxygen consumption are measured.

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  • 679-07608187

    Vials of blood samples.

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  • 653-05976172

    A BB Gun and BB cartridges in evidence bags

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  • 649-07804023

    Hair sample collected from crime scene for genetic testing in laboratory

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  • 649-08479614

    Laboratory worker testing oil samples

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  • 6113-08769700

    Professor watching college students taking test in classroom

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  • 6121-08522450

    Young male scientist looking at report in an optical laboratory, Freiburg Im Breisgau, Baden-Württemberg, Germany

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  • 649-06353124

    Forensic students examining fingerprints

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  • 679-06673850

    Performance testing. Athlete running on a treadmill while his performance and oxygen consumption are measured.

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  • 698-07588240

    High school girl studying in class

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  • 649-08060565

    Engineer inspecting automotive engine in test facility

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  • 649-08306952

    Female scientist testing samples in laboratory

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  • 6109-06007577

    Smiling elementary teacher with students on blackboard behind her

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  • 6121-08228975

    Schoolboy cheating on a test in classroom, Munich, Bavaria, Germany

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  • 649-06353095

    Fingerprint on screen in forensic lab

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  • 649-07280105

    Schoolboy struggling in educational exam

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  • 649-06353164

    Forensic scientist at shattered window

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  • 6113-08769726

    College students taking test at desks in classroom

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  • 600-02201432

    Police Taking Fingerprints

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  • 6113-07906442

    University students taking exam at classroom

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  • 679-08518515

    PROPERTY RELEASED. MODEL RELEASED. Researcher holding a DNA (deoxyribonucleic acid) gel during a genetic experiment in a laboratory.

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  • 6113-07808758

    Elevated view of students writing their GCSE exam

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  • 698-06374980

    Happy young woman studying with friends in university canteen

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  • 649-08703412

    Scientist viewing a DNA profile experiment in a laboratory

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  • 6109-07497755

    Profile view of young male scientist looking at small test tube in laboratory

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  • 649-06845240

    Close up of teenage girl examining test tube

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  • 649-07596084

    Stem cell research. Female scientist examining cell cultures in multiwell tray

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  • 649-07710333

    Pipette dropping a solution into a vial, used for storing liquid during chemical or biological research

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  • 649-06041595

    Chemistry students examining models

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  • 632-08130042

    Scientist scrutinizing test tubes containing blue liquid in lab

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  • 679-05996512

    Forensic evidence. DNA samples, autoradiogram and evidence bag.

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  • 649-06353094

    Fingerprints on screen in forensic lab

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  • 649-07804024

    DNA sample swab collected from crime scene for genetic testing in laboratory

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  • 679-07151134

    Genetic research.

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  • 698-07588227

    High school student studying in classroom

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  • 649-08060524

    Doctors and scientists looking at screens of Magnetic Resonance Imaging (MRI) 3 Tesla twin speed scanner

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  • 6109-06007579

    Smiling elementary teacher standing in classroom with books in her arms

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  • 649-06489957

    Student using tablet computer in class

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  • 649-06353122

    Forensic students examining fingerprints

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  • 649-07279845

    Forensic scientist holding evidence bag from crime scene in laboratory

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  • 649-03797144

    Hand holding sample in front of monitor

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  • 6109-08203241

    Man typing on laptop and using smartphone at desk

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  • 679-07962152

    DNA autoradiogram being held over a rows of dna samples in laboratory.

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  • 649-07559960

    Female scientist monitoring plant samples in lab

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  • 632-08130046

    Scientist scrutinizing test tubes in lab

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  • 6113-07906460

    University students taking exam in classroom

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  • 698-07588239

    High school students studying at desk in classroom

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  • 6113-07762457

    Lawyer showing documents to jury in court

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  • 632-08130047

    Scientist examining test tube in lab

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  • 649-08306951

    Scientists testing samples in laboratory

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  • 649-06353099

    Loupe over fingerprints on arrest form

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  • 649-06845248

    Portrait of scientist with lab equipment and machinery

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  • 6113-07808793

    Students passing note between desks during their GCSE exam

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  • 649-08060569

    Metallurgist working with electron microscope in automotive test facility

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  • 679-07608192

    Blood samples in test tube rack.

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  • 679-06671867

    Medical test tube with blood samples, computer artwork.

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  • 679-06781194

    Light microscope. Close up of a slide on a microscope stage.

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  • 649-06041612

    Students with grades cheering at school

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  • 698-07611769

    Full length of female students giving high-five in school library

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  • 649-08125920

    Scientist viewing sample on a glass slide through microscope for medical testing

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  • 649-08060587

    Stem cell research, nuclear transfer of embryonic stem cells used in cloning for medical research

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  • 679-04250535

    Forensic evidence

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  • 649-07520617

    Young female scientist experimenting in laser laboratory

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  • 635-05972695

    Student writing at desk

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  • 679-06781193

    Light microscope. Close up of a slide on a microscope stage.

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  • 649-06353092

    Fingerprints on screen in forensic lab

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  • 679-05992355

    Haematology lab.

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  • 6113-07731281

    Students and teacher examining globe in classroom

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  • 679-06673845

    Performance testing. Athlete riding an exercise bike while his performance and oxygen consumption are measured.

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  • 649-07280104

    Class of schoolchildren doing educational exam

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  • 698-07588241

    High school boy writing at desk in classroom

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  • 622-08122924

    Newspaper and magnifying glass

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