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Lamarckian evolution is based on the notion that changes that happen to an organisms physiology are passed on when it reproduces. Taking this to an extreme to show why it has been discredited, a person who loses their arm during their childhood does not have babies that are born with one arm. With regard to cave fish, Lamarcks theory of evolution argues that they lose their eyes during their life, and pass on this "lack of eye-ness" to their offspring. Modern genetics has further dampened this idea, as acquired characteristics are not carried in genes.
Darwinian evolution argues that, at some point during the cave fishes history, a genetic mutation caused one to be born with no eyes (or more likely, one was born with slightly less functional eyes). These fish, due to the nature of their dark environment, would be at no disadvantage to their fully sighted brethren. Eyes can easily get infected or irritated, so nature may have favoured on the side of the eyeless ones. Over time blind cave fish became dominant, eventually reaching the pinnacle of existence by being discussed on the internet.
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What else can I help you with?
Is carlsbad caverns the biggest cave?
No, Carlsbad Caverns in New Mexico is not the biggest cave in the world. The world's largest cave by volume is Son Doong Cave in Vietnam, while Mammoth Cave in Kentucky is the longest known cave system in the world.
Is cave abstract noun?
Is cave concrete or abstract
What is a good cave name?
Cave of the Unknown.
Is cave a abstract noun?
Cave is a common noun.
What is largest cave in the Philippines?
The largest cave in the Philippines is the Callao Cave located in Penablanca, Cagayan. It features seven chambers, with the chamber known as the Chapel being the most famous due to the natural cathedral-like formation of rock.
What theories do archaeologists have about why these cave paintings were made in the lascaux cave?
notjiifh
Did people form from cave men?
That is the theory of evolution-but it's only one of the theories.
How do you go in the cave on Astro Knights Island?
"Cave" - the tunnel from Mordred's Laboratory to the dungeon : push through the wall, which is loose dirt. "Cave"- the volcano on the fire planet (see related question)
Why were paintings produced on cave walls?
The purpose of the paleolithic cave paintings is not known. The evidence suggests that they were not merely decorations of living areas, since the caves in which they have been found do not have signs of ongoing habitation. Also, they are often in areas of caves that are not easily accessed. Some theories hold that they may have been a way of communicating with others, while other theories ascribe them a religious or ceremonial purpose.
What is cave art to people?
Some theories claim that it is prehistoric communication. Others, however, claim that it is NOT prehistoric because documenting lifestyles in art is considered recorded history.
What actors and actresses appeared in Animals Distract Me - 2011?
The cast of Animals Distract Me - 2011 includes: Mario Batali as himself Rakee Dasilva as Cave Man Ona Grandey as Child Grant Schaffer as Artist Campbell Scott as Charles Darwin Elettra Wiedemann as Cave Woman
What is timbering in trenches?
When the depth of trench is large or when the sub - soil is loose, the sides of the trench may cave in. The problem can be solved by adopting a suitable method of timbering.
What are lamarcks ideas?
Lamarck knew evolution was happening, his inaccuracies are in how he explained it. The first part of his theory is known as "use it or lose it" today. He said that use makes organs and structures bigger or more useful. Giraffes needed long necks, while blind cave fish lost their eyes. Darwin thought this idea was too simple, and replaced it with natural and sexual selection. The second major point Lamarck made was called acquired inherited traits. This means that traits that an organisms gets after it was born affects its offspring. This would mean that a bodybuilder would naturally get buff children, and that crabs that lost their claws would have clawless spawn. A famous experiment involving the mutilation of mice (which left their offspring unaffected) disproved this. Because of our knowledge of genetics, we say that variation is caused by mutations and not acquired traits.
What are Lamarcks?
Lamarck knew evolution was happening, his inaccuracies are in how he explained it. The first part of his theory is known as "use it or lose it" today. He said that use makes organs and structures bigger or more useful. Giraffes needed long necks, while blind cave fish lost their eyes. Darwin thought this idea was too simple, and replaced it with natural and sexual selection. The second major point Lamarck made was called acquired inherited traits. This means that traits that an organisms gets after it was born affects its offspring. This would mean that a bodybuilder would naturally get buff children, and that crabs that lost their claws would have clawless spawn. A famous experiment involving the mutilation of mice (which left their offspring unaffected) disproved this. Because of our knowledge of genetics, we say that variation is caused by mutations and not acquired traits.
Where is goudon?
Cant get it n sapphire, firered, or leafgreen, but u can trade it 2 those games frum ruby aftr u find it in the cave of origin when team magma sets it loose... Oh yea, the cave of origin is in sootopolis...so youll need to surf and dive to get there...
What are cave entrances called?
Cave entrances are typically called cave mouths, cave openings, or cave portals.
if you don't now where it is the cave?
Where the cave is answer question cave. This is answer to question which is clearly written out. Cave is where don't know cave.
