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Leaves - anatomy Stomata and guard cells

Leaves - anatomy Stomata and guard cells

Untamed Science: Why do leaves change color?

Untamed Science: Why do leaves change color?

Image of the Day 1/11/13  HeLa cells show off their tube-like, cytoplasmic projections called filopodia, which are thought to play a role in sensing, migration, and cell-cell communication.

Image of the Day 1/11/13 HeLa cells show off their tube-like, cytoplasmic projections called filopodia, which are thought to play a role in sensing, migration, and cell-cell communication.

GeneEd:  Genetics, Education, Discovery, from NIH.  Labs and resources on many topics -- epigenetics, bioinformatics, cell biology, forensics, evolution and more.

GeneEd: Genetics, Education, Discovery, from NIH. Labs and resources on many topics -- epigenetics, bioinformatics, cell biology, forensics, evolution and more.

Genetic Disorders A to Z  and related genes and chromosomes—Genetics Home Reference provides consumer-friendly information about the effects of genetic variations on human health.

Genetic Disorders A to Z and related genes and chromosomes—Genetics Home Reference provides consumer-friendly information about the effects of genetic variations on human health.

Cell Biology Animations - visuals in several languages that show how the parts of a cell function.

Cell Biology Animations - visuals in several languages that show how the parts of a cell function.

[Image, BIODIDAC, LEPI003B.GIF Arthropoda Insecta Life cycle of the monarch butterfly. Cycle vital dun papillon, le monarch.]

[Image, BIODIDAC, LEPI003B.GIF Arthropoda Insecta Life cycle of the monarch butterfly. Cycle vital dun papillon, le monarch.]

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