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A classic circular form spider's web Infographic illustrating the process of constructing an orb web. A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning 'spider') [1] is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.
Spiders produce silk using special organs called spinnerets, located typically on the underside of their abdomen. They look a bit like an icing nozzle The 7 Types of Spider Webs and the Incredible ...
The growth rate of baobab trees is determined by ground water or rainfall. [5] [15] The trees produce faint growth rings, but counting growth rings is not a reliable way to age baobabs because some years a tree will form multiple rings and some years none. [16] Radiocarbon dating has provided data on a few individual A. digitata specimens.
Tree diameter fluctuates with rainfall so it is thought that water may be stored in the trunk. [8] Baobab trees have two types of shoots—long, green vegetative ones, and stout, woody reproductive ones. Branches can be massive and spread out horizontally from the trunk or are ascending.
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of araneomorph spiders first described by Carl Jakob Sundevall in 1833. [1] This diverse, globally distributed family includes over 3,000 species in 124 genera , [ 2 ] and is the most common arthropod found in human dwellings throughout ...
The adult female triangulate cobweb spider is 3 to 6 mm long (1/8 to 1/4 inch), with a brownish-orange cephalothorax and spindly, yellowish legs, and tiny hairs. The round, bulbous abdomen is creamy in color, with parallel purply-brown zigzag lines running front to back. This distinctive pattern sets it apart from other theridiids in its area.
Some variegation is caused by structural color, not pigment; the microscopic structure of the plant itself reflects light to produce varying colors. This can happen when an air layer is located just under the epidermis resulting in a white or silvery reflection. [ 8 ]
Chlorophytum comosum, usually called spider plant or common spider plant due to its spider-like look, also known as spider ivy, airplane plant, [2] ribbon plant (a name it shares with Dracaena sanderiana), [3] and hen and chickens, [4] is a species of evergreen perennial flowering plant of the family Asparagaceae.