WebNotes on biology. Terrestrial flatworm (undescribed genus), North Island, New Zealand. Terrestrial flatworms are predators that attack a range of small animals including slugs, snails, earthworms, and other soil invertebrates. Flatworms hunt actively in the soil, moving along crevices and burrows, as they follow the scented trail of their prey. WebAug 2, 2012 · The compound eyes of fruit flies were the most thoroughly studied invertebrate eyes, owing to the short fly life cycle and a library of well-described eye-related genes in fruit flies.
Photoreception - Single-chambered eyes Britannica
WebFlatworms are flattened and have bilateral symmetry. They are triploblastic (have 3 embryonic tissue layers: ectoderm, mesoderm, and endoderm) and therefore have organ … WebFlat Worms (Turbellaria) Freshwater flatworms are identified by their soft, elongate, and flattened bodies, with a triangular head formed by a slight restriction of the body and often 2 eyespots that give the animal a cross-eyed appearance. The body is not segmented and ranges in length from <1mm-30mm. consumer reports gaming goggles blue light
Exploring Animal Photoreceptors and Eyes - ableweb.org
WebApr 6, 2024 · If eyes determine the front of an animal, you might expect to find an anus at the posterior – but no matter how hard you look, you won’t find anything: flatworms don’t have one. Search for a mouth and you’ll not find that in the expected place either, for in most flatworm species it is located in the centre of the body. WebFlatworms( class Turbellaria, order Tricladida, family Dugesiidae) Primary predators feeding on various soft-bodied invertebrates. They also scavenge on carrions of larger animals and consume significant portion … WebFlatworms have a ladder-like nervous system; two interconnected parallel nerve cords run the length of the body. Most flatworms have a distinct head region that includes nerve cells and sensory organs, such as eyespots. The development of a head region, called cephalization, evolved at the same time as bilateral symmetry in animals. consumer reports garage doors