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Cheiracanthium, commonly called yellow sac spiders, is a genus of araneomorph spiders in the family Cheiracanthiidae, and was first described by Carl Ludwig Koch in 1839. [4] They are usually pale in colour, and have an abdomen that can range from yellow to beige.
In early summer C. erraticum builds a retreat made from two or three leaves or grass heads which are stitched together to hold the female and her egg sac. Later in the year, the immature spiders, which are already showing the reddish median stripe on the abdomen, can be found in small silk cells on plant stems.
Saprotrophic nutrition / s æ p r ə ˈ t r ɒ f ɪ k,-p r oʊ-/ [1] or lysotrophic nutrition [2] [3] is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed (dead or waste) organic matter.
Tartar lamb illustration Zoophytes in 1833 book.. A zoophyte (animal-plant) is an obsolete term for an organism thought to be intermediate between animals and plants, or an animal with plant-like attributes or appearance.
X-ray showing the skeleton of Typhlonectes (Typhlonectidae). Caecilians' anatomy is highly adapted for a burrowing lifestyle. In a couple of species belonging to the primitive genus Ichthyophis vestigial traces of limbs have been found, and in Typhlonectes compressicauda the presence of limb buds has been observed during embryonic development, remnants in an otherwise completely limbless body. [7]
Herbivore is the anglicized form of a modern Latin coinage, herbivora, cited in Charles Lyell's 1830 Principles of Geology. [3] Richard Owen employed the anglicized term in an 1854 work on fossil teeth and skeletons. [3]
Comparing the two in basic terms, heterotrophs (such as animals) eat either autotrophs (such as plants) or other heterotrophs, or both. Detritivores are heterotrophs which obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces ). [ 8 ]
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