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The target temperature of most species is 37 °C (99 °F) to 38 °C (100 °F). In monogamous species incubation duties are often shared, whereas in polygamous species one parent is wholly responsible for incubation. Warmth from parents passes to the eggs through brood patches —areas of bare skin on the abdomen or breast of the incubating birds.
The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...
The abbreviation is not always a short form of the word used in the clue. For example: "Knight" for N (the symbol used in chess notation) Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE.
They have four wings, usually similar in size and shape, and a generalised pattern of veins. [4] Some neuropterans have specialised sense organs in their wings, or have bristles or other structures to link their wings together during flight. [5] The larvae are specialised predators, with elongated mandibles adapted for piercing and sucking.
The hind wings are much smaller than the forewings and may be vestigial or absent. The second segment of the thorax , which bears the forewings, is enlarged to hold the main flight muscles. Adults have short, flexible antennae, large compound eyes, three ocelli and non-functional mouthparts.
Pteranodon (/ t ə ˈ r æ n ə d ɒ n /; from Ancient Greek: πτερόν, romanized: pteron ' wing ' and ἀνόδων, anodon ' toothless ') [2] [better source needed] is a genus of pterosaur that included some of the largest known flying reptiles, with P. longiceps having a wingspan of over 6 m (20 ft).
[5] [6] [7] The older group name "physopoda" references the bladder-like tips to the tarsi of the legs. The name of the order, Thysanoptera, is constructed from the ancient Greek words θύσανος, thysanos, "tassel or fringe", and πτερόν, pteron, "wing", with reference to the insects' fringed wings. [8] [9] [10]
Pterygota (/ ˌ t ɛ r ə ˈ ɡ oʊ t ə / terrə-GOH-tə [2] Ancient Greek: πτερυγωτός, romanized: pterugōtós, lit. 'winged') is a subclass of insects that includes all winged insects and groups who lost them secondarily. [3] Pterygota group comprises 99.9% of all insects. [4]