biology 3487  results

Liverwort spore capsuleLiverwort spore capsule
Chlamydia infected cell, illustrationChlamydia infected cell, illustration
Biological researchBiological research
Biological researchBiological research
Biological researchBiological research
Illustration of a human cell.Illustration of a human cell.
Illustration of a dividing cancer cell.Illustration of a dividing cancer cell.
BacteriaBacteria
Biological researchBiological research
Nasturtium stem, SEMNasturtium stem, SEM
Cancer cell, illustrationCancer cell, illustration
Cell divisionCell division
Sperm production, SEMSperm production, SEM
Embryonic stem cellsEmbryonic stem cells
Illustration of a mast cell.Illustration of a mast cell.
Caspase-9 complexed with an inhibitor, molecular models is in skin cells and therefore, for the prevention of skin cancerCaspase-9 complexed with an inhibitor, molecular models is in skin cells and therefore, for the prevention of skin cancer
Computer illustration of a synapseComputer illustration of a synapse
Genetic engineeringGenetic engineering
light micrograph of a section through a parotid salivary glandlight micrograph of a section through a parotid salivary gland
Synaptic transmissionSynaptic transmission
AdenovirusAdenovirus
BacteriaBacteria
Illustration of a cancer cell.Illustration of a cancer cell.
Computer artwork of an adenovirus, showing the surface structure of the virus's outer protein coat (capsid)Computer artwork of an adenovirus, showing the surface structure of the virus's outer protein coat (capsid)
Computer artwork of an adenovirus, showing the surface structure of the virus's outer protein coat (capsid)Computer artwork of an adenovirus, showing the surface structure of the virus's outer protein coat (capsid)
Cancer cells, illustrationCancer cells, illustration
Fallopian tubeFallopian tube
Fallopian tubeFallopian tube
Illustration of giardia parasites.Illustration of giardia parasites.
Trachea mucous membrane, SEMTrachea mucous membrane, SEM
Human nerve cellsHuman nerve cells
Nerve cells, artworkNerve cells, artwork
Nerve cells, artworkNerve cells, artwork
Pathogenic viruses causing infection in host organismPathogenic viruses causing infection in host organism
Glomerulonephritis Light micrograph of tissue from a kidney in a case of glomerulonephritis most common causes of primary glomerular diseases in adultsGlomerulonephritis Light micrograph of tissue from a kidney in a case of glomerulonephritis most common causes of primary glomerular diseases in adults
Nerve cells, artworkNerve cells, artwork
Gonorrhoea bacteria, illustration. Gonorrhoea is a sexually transmitted disease caused by Neisseria gonorrhoeae bacteria.Gonorrhoea bacteria, illustration. Gonorrhoea is a sexually transmitted disease caused by Neisseria gonorrhoeae bacteria.
Illustration of a human cell.Illustration of a human cell.
Illustration of a human cell.Illustration of a human cell.
Illustration of a human cell.Illustration of a human cell.
DNA (deoxyribonucleic acid) structure, illustration.DNA (deoxyribonucleic acid) structure, illustration.
Blastocyst, artworkBlastocyst, artwork
Pipetting sample into petri dishPipetting sample into petri dish
Pipetting sample into petri dishPipetting sample into petri dish
Human embryosHuman embryos
Illustration of West Nile virus particleIllustration of West Nile virus particle
Viral infection, illustration.Viral infection, illustration.
Viral infection, illustration.Viral infection, illustration.

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