32,272 免费图片适用于生物学

水下鱼动物海上生活野生动物海洋水西維吉尼亞州洋海

Close-up of Redbreast Sunfish

Shortfin Mako Shark - Isurus oxyrinchus

医疗药物药品

A medical illustration of vancomycin–resistant, Enterococci sp. bacteria. 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”.

电子学细菌

Transmission electron microscopic (TEM) image, revealed ultrastructural details exhibited by numerous, Coxiella burnetii bacteria, which cause the worldwide disease known, as Q fever. 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”.

A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. 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”.

电子学细菌

Juvenile Chinook salmon-2

Biologists search for Fountain Darter-2

Juvenile Chinook salmon-2

MERS Coronavirus Particles–Colorized transmission electron micrograph showing particles of the Middle East respiratory syndrome coronavirus that emerged in 2012. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Biologists search for Fountain Darter-1

Rosyside dace-3

Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Biologists search for Fountain Darter-1

Brook trout-1

A medical illustration of Clostridioides difficile bacteria, formerly known as Clostridium difficile. 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”.

A 100X photomicrograph magnification of a malachite green spore stained sample, revealed the presence of numerous Bacillus sp. bacteria. 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”.

生物学细菌

Blue Patterned Fish

Brook trout-1

Brook trout-3

Brook trout-3

Brook trout-1

Western Mosquitofish-1

Torrent sucker

Rainbow trout-3

Juvenile Chinook salmon-2

生物学裸体

Triceratops Dinosaur Skull

暴龍屬

Colorful viruses

生物学感染

Plesiosaurus Dinosaur

侏罗纪公园恐龙

Preparing to tag black bear cub

野生动物哺乳动物

Tyrannosaurus Dinosaur

侏罗纪公园恐龙

Triceratops Dinosaur Bone

Stingray Fish

Fish sticking out of the ground

Slimy sculpin-1

Pinacosaurus Dinosaur

侏罗纪公园恐龙

Gas mask during a nuclear scenario

Gas mask during a nuclear scenario

Dinosaur Fossil

骨骼系統恐龙

Fetus

Starfish

Brook trout-3

Brook trout-1

Brook trout-2

Brook trout-2

Microscope - Grayscale

实验室科学

Gas mask during a nuclear scenario

Prickly sculpin

Chinook salmon-5

Brook trout-1

Microscope - Grayscale

实验室科学

Young brook trout with fall leaves in water

Shrimp in water

Male bowfin hides in vegetation-3

Skeleton

医疗药物科学

Cutthroat trout

Lake chubsucker-1

Greenbrier Cave Crayfish

生物学样本

Mimic shiner-1

Chickadee

Mimic shiner-2

Microscope

实验室科学

Laboratory experiment

Bluegill searches for food

A 440X photomicrograph magnification of a hematoxylin and eosin (H&E)–stained liver tissue specimen, revealed the presence of cytoarchitectural changes indicative of fatty degeneration. 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”.

电子学细菌

Novel Coronavirus SARS-CoV-2–Colorized scanning electron micrograph of an apoptotic cell (blue) infected with SARS-COV-2 virus particles (red), isolated from a patient sample. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Bluegill on nest-3

Ash Meadows Amargosa pupfish-1

Close-up of Redbreast Sunfish-4

Sand Colored Fish in the tank

Close-up of bluegill with other fish

A photomicrograph of Candida albicans fungal spores. 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”.

Brook trout-2

Two laboratory technicians experimenting with virus. 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”.

Bluegill on nest-1

野生动物鱼

帝企鹅家族

Threespine stickleback-5

Pills bottle

医疗药物药品

Queen angelfish

Brook trout-5

Redline darter

Lake chubsucker

Redbreast sunfish-1

Redbreast sunfish-2

Redbreast sunfish-3

T-ex head

Brook Trout in Aquarium - Salvelinus fontinalis

Ash Meadows Amargosa pupfish-4

Bluegill on nest-1

Texas Cichlid - Herichthys cyanoguttatus

Young brook trout with fall leaves in water-2

Redbreast sunfish-1

Ash Meadows Amargosa pupfish-1

Young brook trout with fall leaves in water-1

Bluegill on nest-1

Rock bass-1

Ash Meadows Amargosa pupfish-1

Slimy sculpin-4

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