W9:H1 general knowledge by rasp Sadhana (471 to 480)ఈ దేహం నిండా సందేహాలే! ఎందుకు, ఏమిటి, ఎప్పుడు, ఎక్కడ, ఏది, దేనిని, ఎవరు, ఎవరిని, ఎప్పుడైతే, ఎవరైతే, ఎలా….?!?!?!…తెలుసుకుని బతకాలి, తెలియకుండా చావకూడదు; బోళ్ళంత విజ్ఞానం మనకోసం. Many doubts are there in our body! Why, what, when, where, which, whom, whose, who, while, how…? Live after known, do not die without known; more knowledge and most surprising things are for us. ok!
General knowledge/ most surprising things :
471. The Kwanzan Cherry tree,Chinese Cherry tree, and Yoshino Flowering Cherry tree, are sterile and
do not produce fruit, but are cultivated to be decorative.
472. Insects can sustain in almost all the ecosystems due to their extreme adaptability, and present day there are more than 1,000,000 described species. It is expected to that there are 6 – 10 million extant species of insects on the Earth.
473. The body of the spider is segmented into two tagma; cephalothorax (fused head and thorax) and abdomen. Abdomen is mainly the reproductive unit as in the other insects and arthropods. The cephalothorax bears four pairs of legs for locomotion and weaving webs. The spiders have four pairs of compound eyes and no antennae.
474. The unique ability stems from the camels’ body being able to store fat in their humps and water in the lining of their stomachs. These stores can be used in times of need which is ideal in deserts where both food and water are extremely scarce. Their wide, padded feet grip well on loose sandy soil and stop the camel from sinking into the sand. An insulating wool coat keeps out both the heat of the day and the cold of the night. Hairy eyelashes, ears and slit nostrils keep out the desert dust and sand.
475. The ingenious Sea Otter uses rocks as tools to break open hard-shelled prey or to dislodge prey such as abalone. It is the only mammal other than the primates (monkeys, apes, humans) known to use tools. While eating, Sea Otters float on their backs, using their chest as a dinner table.
476. Seabirds’ is a general term used to collectively describe any species of bird which spends a substantial part of its life foraging and breeding in the marine environment. Birds considered to be seabirds include gulls, terns, albatrosses, petrels, shearwaters (muttonbirds), cormorants, gannets and boobies. Twenty-two of the world’s 24 albatross species occur in the Southern Hemisphere. Nineteen of these species occur in Australian waters,
477. Ocean acidification is the newest global environmental threat confronting the earth. It is the consequence of the same anthropogenic excess that is responsible for global warming-( Green House Effect) release of much more CO2 at much faster rates, minute after minute, than the earth’s capability to assimilate. Oceans are also absorbing large quantities of two more acid-forming gases being released at unprecedented rates into atmosphere-SOx and NOx. Thus far, on a global scale, their impact has been relatively minor; less than 3% of the impact of CO2, but is expected to grow in magnitude as the emissions continue to increase.
478. Unlike most other fish, the Seahorses are ‘monogamous’ and mate for life. Male seahorses are equipped with a brood pouch on their ventral, or front-facing, side. When mating, the female deposits her eggs into his pouch, and the male fertilizes them internally. He carries the eggs in his pouch until they hatch, then releases fully formed, miniature seahorses into the water. Rarer still, they are among the only animal species on Earth in which the male bears the unborn young. upright-swimming relatives of the pipefish can range in size from 0.6 inches (1.5 centimeters) to 14 inches (35 centimeters) long. they graze continually and can consume 3,000 or more brine shrimp per day.
479. The body of a sea cucumber is roughly cylindrical and in some cases long and five-sided, not unlike that of a cucumber. Protruding from the mouth at the anterior end is a circlet of feathery retroactive tentacles which are actually modified tube-feet. At the posterior end is the anus/ in the Pacific Ocean and Indian waters.
480. Sea turtles are classified in the Class Reptilia, Subclass Anapsida and Order Chelonii. There are seven recognized species of sea turtles, six of which are in the Family Cheloniidae (the hawksbill, green, flatback, loggerhead, Kemp’s ridley and olive ridley turtles), with only one (the leather back) in the family Dermochelyidae. Sea turtles start their lives in eggs buried in the sand. After a two-month incubation, the young turtles hatch and run to the sea, facing attack by a variety of predators (e.g., birds, crabs, fish) along the way. They drift at sea until they are about a foot long and then, depending on the species, may move closer to shore to feed.
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