0
Why did lamarck think evolution involeved that caused his ideas to be correct?
Wiki User
∙ 13y ago
Lamark believed in the theory of acquired traits. He thought that if you broke your leg or dyed you hair, than your offspring would have that trait as well. Now, Lamark looked at a model of a giraffe. He thought that giraffes started out short and their low-to-the-ground food source died out, so they had to look in trees. He thought that they stretched their necks and their offspring had that trait. You can compare this to breaking your leg or dying your hair because it is only a temporary thing, not like blue eyes or brown hair which has a likelihood of being passed down to your offspring.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What did lamarck think evolution involved that caused his ideas to be incorret?
Lamarck believed that traits acquired by one individual, will be immediately passed down on it's descendants. FE: If your father was a smith, you will have stronger muscles and bigger hands. Which is not true because evolution like that happens over thousands maybe millions of years and genetic changes are only expressed if the mutations occur in the DNA of the reproductivecells (spermproducingcells etc) Note: Lamarck has proven to be right by scientist nowadays in the point of genetic expression: Children of people who survived the Hunger Winter in Holland of 1944 have more chance on heart diseases and become thicker more easily. This change is directed to the fact that certain events can activate certain genes, thus stating that Lamarck's theory isn't entirely wrong
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.
What is Kimuras Neutral Theory of Molecular Evolution?
Kimura (1968) • The vast majority of evolutionary changes at the molecular level are caused by random drift of selectively neutral mutants (not affecting fitness) ! The Molecular Clock.
Do most types of organisms evolve at about the same rate?
There is no rate to evolution. Evolution is simply the following of natural selection within an environment. natural selection is like survival of the fittest. A mutation in the organism is caused which can start the natural selection process for that organism. If that organism is able to survive better with that mutation then the trait is passed down and slowly evolution takes place. The only way for evolution to happen at the same rate of another organism is if the organisms rely on each other and one goes through a change. The other dependent species will have to also go through an alteration in order to be able to survive. hope this helps!
Stated that inheritance of acquired traits caused change in a species over time?
Lamarck thought acquired traits were past on, but he was prover wrong by Darwin and his natural selection idea.
What did lamarck think evolution involved that caused his ideas to be incorret?
Lamarck believed that traits acquired by one individual, will be immediately passed down on it's descendants. FE: If your father was a smith, you will have stronger muscles and bigger hands. Which is not true because evolution like that happens over thousands maybe millions of years and genetic changes are only expressed if the mutations occur in the DNA of the reproductivecells (spermproducingcells etc) Note: Lamarck has proven to be right by scientist nowadays in the point of genetic expression: Children of people who survived the Hunger Winter in Holland of 1944 have more chance on heart diseases and become thicker more easily. This change is directed to the fact that certain events can activate certain genes, thus stating that Lamarck's theory isn't entirely wrong
How can you believe in evolution and god?
You can believe evolution was caused by God and he controls it.
What is the term for erosion caused by stones in a river?
Evolution
What is the term for erosion caused by stones in river?
Evolution
What mechanism did Charles Darwin believe caused evolution?
Natural Selection is what Darwin believed was the cause of evolution.
How does chance play a role in evolution?
Evolution is caused by adaptations (favorable traits) that sometimes come from mutations. Mutations happen by chance, and this is how chance plays a role in evolution.
Is getting smarter evolution?
It could be, if it is caused by genetically inherited factors.
The independent evolution of similar traits in organisms is caused by?
convergence/homoplasy
How did evolution start?
The point of Evolution is that it doesn't start or stop at any given point. It's a natural process that happens throughout life. Evolution is caused by triggers in genes. Different animals have different triggers. These triggers can be caused by different things, but most commenly a change in habitat.
We regret the inconvenience caused to you. We regret for the inconvenience caused to you. which of these 2 sentences correct?
We regret the inconvenience caused to you.
Is the expression ''My apologies for the inconvenience caused is it correct?
my apologies for any inconvenience caused.
