How long does it take once metamorphisis starts for the butterfly to emerge?
365319
About one week depending on the species.
508796
it depends on the situation and your physical condition at the certain time but on normal condition and circumstance, i'd say 2 - 3 minutes :-)
457859
They are hermaphrodite, that means they've got both male and female organs, still they need a partner so that they can exchange sperm, they do it by mating. the sperm stored in the seminal receptacle is later used in the fertilization of eggs and are then released in a cocoon, the new earthworm come out in about 2-3 weeks.
489238
Scorpions are among the few arthropods that don't lay eggs. In some, the female can store sperm until she is ready to fertilise her eggs. The fertilised eggs develop into embryos in brood chambers within the mother's body. Nutrients are transferred from the mother's digestive system to the embryos, but not through a placenta like in mammals. "Gestation" is quite long: it can take several months to more than a year before the young are "born". In some, the babies are fully formed but their skin remains white and soft until their second moult. In others, the babies look like fat white maggots with tiny pincers. They only look like scorpions after their second moult, when they get the right shape and their exoskeleton turns dark and hard
161740
Yes, the Monarch Butterfly, during its migration in winter.  It travels almost non-stop to the south where its warmer, as much as 1,870 miles covered.
997749
The eggs hatch in about 60 days
775773
The housefly has a lifespan of about 48 hours
713044
This is directly dependant on temperature and food supply. It can be anywhere from 20 hours to a week, depending on the type of fly and the other factors I mentioned
304122
As little as it has been studied, the life cycle appears to be similar to other deep sea fish- Eggs are laid in shallow mud on the seafloor, they hatch little viper fish, that then grow to as much a 2 feet.  I dont know of anything indicating they go through a significant metamorphosis.
967388
approx. 10 to 14 days.  There is no cure like someone answered.  It just becomes dormant.
406265
Many species of insects have evolved a strategy called diapause. Diapause is a suspension of development that can occur at the embryonic, larval, pupal, or adult stage, depending on the species. In some species, diapause is facultative and occurs only when induced by environmental conditions; in other species the diapause period has become an obligatory part of the life cycle. The latter is often seen in temperate-zone insects, where diapause is induced by changes in the photoperiod (the relative lengths of day and night). The day length when 50% of the population has entered diapuase is called the critical day length, and it is usually quite sudden. Insects entering diapuse when the day length falls below this threshold are called long day insects. Those insects that develop normally when there are only a few hours of sunlight and that enter diapuse when exposed to longer days are called short-day insects. The critical day length is a genetically determined property.\n\nDiapause is not a physiological response brought about by harsh conditions. Rather, it is brought about by token stimuli that presage a change in the environment. Diapause begins before the actual severe conditions arise. Diapause is especially important in temperate zone insects that overwinter. Embryos of the silkworm moth Bombyx mori overwinter as embryos, entering diapuse just before segmentation. The gypsy moth Lymantia dispar initiates its diapause as a fully formed larva, ready to hatch as soon as diapause ends. Other insects experience diapause as eggs, pupae, or even as adults.
933782
As to where the color itself comes from:\n\n"The wings of butterflies and moths consist of a colorless translucent membrane covered by a layer of scales (the name of the order is Lepidoptera, meaning 'scaly wings'). Each scale is a flattened outgrowth of a single cell and is about 100 µm long and 50 µm wide. The scales overlap like roof tiles and completely cover the membrane, appearing as dust to the naked eye. \n\nIn butterflies, iridescence is caused by multiple slit interference. Sunlight contains a full range of light wavelengths. "Interference" occurs when light hitting the wing combines with light reflected off the wing. Light is a wave. If the crests and the troughs of the waves are aligned, or "in phase", they will cause constructive interference and iridescence. This happens when the one light wave hits the first groove, and a second light wave travels half of a wavelength to an other groove and is reflected back in phase with the first. If the crest of one wave meets the trough of an other wave ("out of phase"), they will cancel each other out, demising the overall light intensity."\n\nAs to WHY they are colored, this answer applies to Morpho Blues, but can be applied to other butterflies as well:\n\n"Iridescent surfaces, such as butterfly wings, help animals to elude potential predators. When these insects fly, the upper surface of their wings continually changes from bright blue to dull brown because the angle of the light striking the wing changes. As the butterflies move their wings up and down during flight, they seem to disappear and they reappear a short distance away, looking like ethereal flashes of bright blue light. The dark undersides of their wings strengthen this effect. Combined with an undulating pattern of flight, this ability to quickly change color makes them difficult items for predators to pursue."
595272
Pupa- During the pupa phase, the insect is encased in a shell, similar to an egg-It is during this phase the metamorphosis occurs, when the insect changes it's morphology, or shape- This is the period, for example, between a caterpillar and butterfly\n*edit* Thanks jag-and you know, you don't really look much like Gil Grisolm to me...
1114506
I would think that things gradually evolved over time.  There must have been enough "almost" butterflies to pro-create with the butterfly to have offspring.  So I feel it would be like being in the current of the stream and the stream would have kept pushing forward maybe a little different but in the same general direction.  Just a guess..  Good question.
466752
The life cycle of a Monarch includes a change of form called complete metamorphosis. The Monarch goes through four radically different stages:\n\nThe eggs are laid by the females during spring and summer breeding months. \nThe eggs hatch, revealing worm-like larva, the caterpillars. The caterpillars consume their egg cases, then feed on milkweed, and sequester substances called cardenolides, related to the cardiac glycoside digitalis. During the caterpillar stage, Monarchs store energy in the form of fat and nutrients to carry them through the non-feeding pupa stage. \nIn the pupa or chrysalis stage, the caterpillar spins a silk pad on a twig, leaf, etc. and hangs from this pad by its last pair of prolegs. It hangs upside down in the shape of a 'J', and then molts, leaving itself encased in an articulated green exoskeleton. At this point, hormonal changes occur, leading to the development of a butterfly. \nThe mature butterfly emerges after about two weeks. \n************************************************************\nthe lifetime of a Monarch (lives four days as egg, two weeks as caterpillar, ten days as chrysalis, and two to six weeks as a butterfly). \n************************************************************\nRecent illegal deforestation of the Monarch's overwintering grounds have led to a drastic reduction in the butterfly's population. Efforts to classify it as a protected species and to restore its habitat are under way. Mexican authorities expected a significant increase in the Monarch population in the 2005-2006.
624105
Slightly over eight minutes.\n\nTo be exact look up on Internet\n\nBest Regards
461210
Anywhere from 2 to 5 days.