Water flea morphs,SEM

Bildnummer 11907021
Water flea morphs,SEM
Water flea morphs. Coloured scanning electron micrograph (SEM) of differently-shaped forms of the water flea Daphnia pulex. Research at the Ludwig-Maximilians University in Munich,Germany has shown phenotypic plasticity in several water fleas; they can change their body shapes in response to chemicals (kairomones) given off by predators. The form on the left is a standard shape,whilst that on the right has developed two "neck teeth" (small projections,upper right) on the back of its head (green). These may make it more difficult for invertebrate predators such as the phantom midge (Chaoborus sp.) to catch or eat it. Magnification unknown
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Laforsch, Christian
Bildgröße: 3534 px × 2351 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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