Subtle meaning to teach people to funny when serious, Jiaxizhenzuo up, it was worth the fuss about. After all, preaching can not be built in the wrong on the facts and unrealistic imaginary.
 
Darwin’s finches
 
18311835 years, the young Darwin as a naturalist, a nonsalaried world cruise with the Beagle, collecting plants, animals, fossils, for his theory of evolution was
To create the foundation. Darwin brought back to England in the samples, the most famous finches on the Galapagos Islands, specimens, they later simply be referred to as "Darwin’s finches." Darwin’s "Beagle, the Air," a book Darwin’s finches of the illustrations. This four kinds of land in Darwin finches are sparrow, the finch, tree sparrow and warbler birds, their beak
Size and shape vary greatly, to adapt to different lifestyles. Legend as Darwin in the Galapagos Islands to see such a variety of songbirds was founded theory of natural selection. In fact, Darwin’s finches on the island collecting specimens of these when they do not pay more attention, but also that they are some of Blackbird, Wren, big mouth bird

A scaling of the gorillas, but also the pace is brisk and quick, are not withstand scrutiny. Their size became larger organisms must undergo major changes. Large tapestry, the evolution to smaller animals, but in the evolutionary process of change is not only the size of the body, as well as body proportion changes, such as limbs become more coarse.
Loaded pig nose is not inserted onion elephant: King Kong will have difficulty walking, let alone climb the roof of the building. If we take the pig, and scaling to the size of elephants, their proportion has a significant size difference, such as the limbs of the elephant is much more coarse than the pig. As large as pigs and
Elephants can not stand.
 
Of course, this type of monster movie is aimed at people through the amplification effect of the terror gripped want to get the role of entertainment rather than science, did not care whether or not they are scientifically valid. However, if the director thinks pretending to be noble great meaning, and critics to find out what

If they are enlarged to bigger than people, such as reaching two meters in length, that is magnified 20 times, its cross sectional area of limb foot to 400fold increase, to support 48 kg of body weight, but its volume has increased Great to 8,000 times their actual weight is 960 kg, is the limb’s weight enough to carry 20
Times. Clearly, this spider is stations can not stand, let alone run, jump up.
 
Godzilla looks extremely great feet and can not support its huge body to live.
 
Can reduce the weight of these behemoths do? The main ingredient is water organisms, the proportion of generally a little heavier than water, even if allowed to be reduced to water and
The same proportion of weight change is minimal. The only possible is to change the size, it’s physically smaller, while the limbs become more or less coarse (such as rough on again 4 times), the result would look nothing like the spider.
 
By the same token, the idea of Godzilla into scaling of the dinosaurs, the King Kong idea into

An orange, a cantaloupe and a watermelon. Suppose melon twice the diameter of an orange, and watermelon three times the diameter of an orange. Knife to cut open them, melon crosssectional area is 4 times orange, watermelon, orange crosssectional area is 9 times. But we are more concerned about their weight, right? This is related to their size, the size
Of a cantaloupe orange 8 times, while the volume of watermelon is 27 times more orange!
 
The weight of living organisms depend on its size, and ability to support its body weight of living depends on its crosssectional area of the limb foot. As the volume of multiple growth much faster than the cross sectional area, the ratio is released
By the larger organisms, both the more and the poor, the more overwhelmed limb enough to support a certain extent, not after. Largest spider  giant spider eating a bird.
 
The largest known spider is a giant spider eating a bird, up to 10 cm in length (if the leg length also count up to 30 cm) and weigh 120 grams.

Are well adapted to the environment, is difficult to significant improvements. Suitable for the survival of the mutations occurred just highly unlikely, but happened all of a sudden mutation was particularly large, but also particularly suitable for completely rule out the possibility of survival. Large animals (such as elephants) is not evolved in a short time, but in the role
Of natural selection, through the accumulation of small variations, after a long, tens of millions of years of evolution on the scene.
 
One might think, since it is science fiction movie, we might as tolerant, and not judge the writer of the biological level. Well, even if there is some unknown factor, miraculously born to a giant monster, then they
Can not, as the film depicts it, is to the original biological scaling, because there is an insurmountable obstacle: Gravity .
 
The reason is simple, when an object increases, it increases the multiple crosssectional area is much smaller than a multiple of its volume increases: an area larger by the square, while the volume is increasing by Cubic. Let’s compare

People, to reverence for nature, environmental protection, do not do things contrary to the laws of nature, otherwise nature would have been retaliation.
 
However, the situation described by the film, precisely contrary to the laws of nature, can not happen, you can rest assured. This has two reasons.
 
The first reason is contrary to the laws of biological inheritance and
Variation. Organisms grow by the nutrients provided by food, which is a slow process, no chemical waste can quickly speed up the process. In fact, without any of the factors that allow organisms to become gigantic overnight. Some scifi films to the emergence of giant monsters (such as Godzilla) due to nuclear radiation or chemicals because of genetic mutations caused
By future generations, than the night sounds like a point mutation, in fact, is taken for granted.
 
Nuclear radiation or chemicals that are likely to cause gene mutations, but most mutations are harmful to animals, the offspring can not survive. Individual could survive, that is the number of relatively poor viability of teratogenic. Existing evolutionary biology has a long history,

Enough to eliminate Liuda Sheng, Zhang Kangkang and some observed sunflower adults, children confused. They do not readily believe common sense, to verify their observations do, dare to challenge authority, which is commendable. Unfortunately, they are neither systematic nor detailed observations, but still maintains the professional having access to sufficient information, so puzzled and even cheated hasty conclusions obtained. Issues
In science, only to explore, skepticism is not enough. Of course, some dictionaries, popular science articles are not rigorous or even wrong to say that should bear some responsibility, should make the appropriate changes. Impossible monster
 
Chance to see the introduction of a national television program filmed a few years ago, the U.S. scifi horror film, "Ba Jiaoguai," said the
Plot: In a remote town, due to leakage of chemical waste, tens of thousands of spiders occurred mutation, overnight became bigger than the people, and jump as fast as the speed and the car. They attack the person, scifi film "Ba Jiaoguai" poster. This quiet town into a living hell … … program guide solemnly warned that the film inspiration

In sunlight, the backlight side of IAA content increased in sunflower, backlit surface to stimulate cell elongation, which slowly turned to the sun. In the sun, the auxin redistribution, then slowly back to the starting position of sunflower, which is the East.
 
In chrysanthemum in full bloom, the sunflowers have stopped growing, while the fixed faceplate towards the East. Why
Did not the last to be facing east direction or upward then the other? This may be the result of natural selection, beneficial to the proliferation of the sunflower. Sunflower pollen fear high temperature, if temperature is above 30 degrees Celsius, will be burned, so the fixed towards the East, to avoid direct sunlight at noon, to reduce radiation. However,
The faceplate by the early morning sunlight, it will help dry at night when the dew condensation, reducing the possibility of invasion by the fungus, but also in the cold morning, in the sunlight, so that the faceplate into warm sunflower little nests, can help to attract insect pollinators stay there.
 
Through the above description, I would like to have

But many details remain unclear. Simply put, is this: light (blue light the most efficient use of weak blue light 12 seconds can cause phototropism) irradiation to the bud tip, by the light receptor (a protein, including a phototaxis protein called flavin protein) absorption, stimulate growth hormone synthesis. Light also stimulate the backlight to the smooth surface and the synthesis
Of auxin, but the backlight side of the auxin synthesis to three times higher. The synthesis of auxin in the bud tip through the vascular tissue down transmission, and membrane protein receptors, stimulate the cell wall stretching. Since higher concentrations of auxin backlight surface, leading to the cell surface is pulled back light was longer, thus moving to the smooth
Curved. There are many characteristics of growth hormone, one of which is: If the content is too high, it will suppress rather than stimulate the growth of plants.
 
Now we go back to Sunflower. Obviously, sunflower leaves and chrysanthemum has been able to turn toward the sun, not envisaged as Professor Liu, "except in its neck to install a bearing."

Two pieces of the activity of auxin, backlight the piece was found almost twice the light of the piece.
So what is this auxin chemicals do? Unfortunately, coleoptile growth hormone contained in the amount of tip is too small, can not be the extraction, purification, and determination of its chemical structure. Scientists can only use the material extracted from other
Sources was used to determine the use of oats auxin activity. In 1931, Dutch scientists Kogel (Fritz Kogl) and Hagen  Schmidt (Arie J.HaagenSmit) for the first time extracted from human urine of a substance to stimulate plant growth, called growth hormone A (that is, three alkyd). Kogel and from human urine was extracted several auxin, which is the most active
Indole acetic acid, this substance was in fact back in 1885, extracted from the fermentation broth, and only one did not know it is a growth hormone. indole acetic acid into the first one found a true auxin, IAA is the most important. Now we are on at the molecular level the mechanism of growth hormone have a certain understanding,