8,235 免費圖片適用於研究

水西維吉尼亞州科學爬行动物昆蟲加利福尼亞州開花植物動物樹蝴蝶

Biologists secure boat along shoreline

Laboratory technician working with a cell culture solution, using a syringe to add some of the sample to a glass bottle. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Levine Science Research Center at Duke University, North Carolina

Stages of Monarch butterfly development

School books with apple on desk over school board background

Laboratory Beaker

實驗室液體

培養皿

Laboratory Beaker

實驗室模版

Book Bible

Marine Mammal Stranding Course at NCTC-1

Columbia River scenic-1

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-2

Monarch butterflies-1

Scientist testing with virus through test tubes. A healthcare provider donning a pair of green latex gloves in order to protect herself during her subsequent interaction her next patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

醫療藥物科學

Monarch caterpillar-1

Laptop Office Desk Mobile Notepad

Marine Mammal Stranding Course at NCTC-4

USFWS Fisheries crew in boat preparing for lake sturgeon field work-3

Biologists secure boat along shoreline-2

Marine Mammal Stranding Course at NCTC-1

Monarch butterflies-1

Sounding Rocket Launches

Choctawhatchee River-1

Fish eggs-1

鐵路列車魚

Monarch butterflies-6

Marine Mammal Stranding Course at NCTC-4

Fish eggs

鐵路列車魚

University of Oulu main building in Finland

建築物建築

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Monarch butterfly-1

Marine Mammal Stranding Course at NCTC-3

Monarch butterflies-3

Marine Mammal Stranding Course at NCTC-1

Monarch butterflies-4

Ohio River Islands pontoon boat

Monarch butterflies-2

Marine Mammal Stranding Course at NCTC-1

Cornell University, Infrared Interferometer mission directors console.

$Sample of test tubes. A healthcare provider donning a pair of green latex gloves in order to protect herself during her subsequent interaction her next patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.$

醫療藥物實驗室

Scientist after a failed experiment

科學家科學

Microscope slide cover slip

實驗室科學

Laboratory flask

實驗室燒瓶

森田・西巻研究室のマグネトロン研究で試作された管

Netting Gulf sturgeon in river

Marine Mammal Stranding Course at NCTC-1

Monarch butterflies-1

Measuring black bear paw-2

野生動物哺乳动物

Monarch butterfly-1

野生動物昆蟲

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Monarch butterflies-2

Monarch butterflies-1

Marine Mammal Stranding Course at NCTC-1

Glaciers and Mountains in West Antarctica

Abbotsford House Study Room

Monarch butterflies-1

Monarch butterflies-3

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-5

Marine Mammal Stranding Course at NCTC-1

A woman receiving an influenza vaccination at the Maternal and Child Hospital in Vientiane, Laos. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Children holding vaccination tube waiting to get vaccinated. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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醫療藥物美國

Fish eggs-1

鐵路列車魚

University of Michigan Law School Legal Research Building in Ann Arbor

建築物學校

Juárez's study in the Juárez Museum in Mexico City

墨西哥城市

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-2

Texas wild-rice-1

Biologists weigh a Gulf sturgeon in river

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Measuring black bear paw

野生動物哺乳动物

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-4

Monarch butterflies-1

Marine Mammal Stranding Course at NCTC-2

Monarch butterflies-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-4

Marine Mammal Stranding Course at NCTC-4

Marine Mammal Stranding Course at NCTC-2

Cacapon mussel survey-3

Laboratory Beaker

實驗室液體

Kgun Lake

Monarch butterflies-3

Marine Mammal Stranding Course at NCTC-1

Monarch butterflies-3

Marine Mammal Stranding Course at NCTC-1

Monarch butterflies-1

Choctawhatchee River-1

Laboratory technician working with a cell culture solution, using a syringe to add some of the sample to a glass bottle. A healthcare provider donning a pair of green latex gloves in order to protect herself during her subsequent interaction her next patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

醫療藥物细菌

Choctawhatchee River-2

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