Turn on thread page Beta

lamarck and darwins theory watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    could someone please tell me about the theories of both lamarck and darwin seeing as they always come up in the exam. i have the exam tomorrow so could someone please urgently help me. thanks
    Offline

    2
    ReputationRep:
    I've seen giraffes used a lot in past papers where we're asked to explain why they have their long necks.

    Darwinism
    Charles Darwin was interested in the natural world so he went to sail around the Galapagos Islands During his trip he studies Giant Tortoises and Finches Darwin said that evolution is where all species have evolved from simple life forms like bacteria. The process of evolution occurred through Natural Selection. This if often referredto as the idea of the ‘survival of the fittest’Darwinsaid that if they survive longer, they reproduce more and pass down theirwell-adapted genes. This is natural selection and it causes change in speciesover a long period of time (evolution)TheFinches that Darwin studied in the Galapagos Islands supported his theory asone each different island each Finch had evolved to have different shaped beaksaccording to the food sources available.
    Jean-Baptiste Lamarck’s theory of evolution
    Lamarck suggested that all organisms were linked by the ‘fountain of life’ Lamarck proposed that all life evolved from primitive worms. He thought that the change in characteristics was due to the inheritance of acquired characteristics Lamarck proposed that each species that developed a useful change during its life time would pass on this useful change to its offspring when it reproduced Lamarck’s theory meant that humans who were good swimmers who developed big shoulder muscles would have children who also inherited enlarged shoulder muscles This theory is not accepted as we clearly don’t inherit characteristics that our parents gained in their lifetimes.
    Why Darwin’s theory wasn’t accepted straight away
    Other than the small amount of evidence that Darwin was able to acquire in his travels, there wasn’t any conclusive proof so therefore couldn’t be logically accepted for a long time.· The Bible didn’t say anything to support evolution so many people were reluctant to accept the theory Humans didn’t understand much about DNA and inherited vs. environmental factors at this point in history so rather than accepting Darwin’s theory which would have changed their views completely, the theory was dismissed for a long time until biology was more understood and his theory was able to be proven
    Offline

    2
    ReputationRep:
    (Original post by lil_miss_awesome)
    I've seen giraffes used a lot in past papers where we're asked to explain why they have their long necks.

    Darwinism
    Charles Darwin was interested in the natural world so he went to sail around the Galapagos Islands During his trip he studies Giant Tortoises and Finches Darwin said that evolution is where all species have evolved from simple life forms like bacteria. The process of evolution occurred through Natural Selection. This if often referredto as the idea of the ‘survival of the fittest’Darwinsaid that if they survive longer, they reproduce more and pass down theirwell-adapted genes. This is natural selection and it causes change in speciesover a long period of time (evolution)TheFinches that Darwin studied in the Galapagos Islands supported his theory asone each different island each Finch had evolved to have different shaped beaksaccording to the food sources available.
    Jean-Baptiste Lamarck’s theory of evolution
    Lamarck suggested that all organisms were linked by the ‘fountain of life’ Lamarck proposed that all life evolved from primitive worms. He thought that the change in characteristics was due to the inheritance of acquired characteristics Lamarck proposed that each species that developed a useful change during its life time would pass on this useful change to its offspring when it reproduced Lamarck’s theory meant that humans who were good swimmers who developed big shoulder muscles would have children who also inherited enlarged shoulder muscles This theory is not accepted as we clearly don’t inherit characteristics that our parents gained in their lifetimes.
    Why Darwin’s theory wasn’t accepted straight away
    Other than the small amount of evidence that Darwin was able to acquire in his travels, there wasn’t any conclusive proof so therefore couldn’t be logically accepted for a long time.· The Bible didn’t say anything to support evolution so many people were reluctant to accept the theory Humans didn’t understand much about DNA and inherited vs. environmental factors at this point in history so rather than accepting Darwin’s theory which would have changed their views completely, the theory was dismissed for a long time until biology was more understood and his theory was able to be proven
    (Original post by zulekha zabair)
    could someone please tell me about the theories of both lamarck and darwin seeing as they always come up in the exam. i have the exam tomorrow so could someone please urgently help me. thanks
    Name:  science.JPG
Views: 203
Size:  27.8 KB
    Do any of you know how to do this question? Much appreciated
    Offline

    2
    ReputationRep:
    (Original post by b.l)
    Name:  science.JPG
Views: 203
Size:  27.8 KB
    Do any of you know how to do this question? Much appreciated
    I'm not very good at maths so don't think this is definitely right but personally, I would go about this by finding what % each stage is of the original.
    E.g.
    What % is 4000 of 42500? (=94%)
    What % is 800 of 4000? (=20%)
    What % is 150 of 800? (=19%)

    Again, I'm not sure if that's right so maybe you could check a mark scheme but that's what I'd do in an exam.
    Offline

    10
    ReputationRep:
    (Original post by b.l)
    Name:  science.JPG
Views: 203
Size:  27.8 KB
    Do any of you know how to do this question? Much appreciated
    A) 4000/42500*100 = 9.41% efficient

    B) 800/4000*100 = 20% efficient

    C) 150/800*100 = 18.75% efficient
    Offline

    3
    ReputationRep:
    (Original post by aadil10)
    A) 4000/42500*100 = 9.41% efficient

    B) 800/4000*100 = 20% efficient

    C) 150/800*100 = 18.75% efficient
    Omgg help me to reviseeee
    Offline

    10
    ReputationRep:
    (Original post by User23)
    Omgg help me to reviseeee
    XD I have barely done any, gonna sweat it out tomorrow morning :P
    Offline

    3
    ReputationRep:
    (Original post by aadil10)
    XD I have barely done any, gonna sweat it out tomorrow morning :P
    Omgg ur making me even more nervous!!
    Offline

    10
    ReputationRep:
    (Original post by User23)
    Omgg ur making me even more nervous!!
    quick, stop talking to me! :P
    Offline

    3
    ReputationRep:
    (Original post by aadil10)
    quick, stop talking to me! :P
    lol ok if u wishh xD
    Offline

    2
    ReputationRep:
    (Original post by lil_miss_awesome)
    I'm not very good at maths so don't think this is definitely right but personally, I would go about this by finding what % each stage is of the original.
    E.g.
    What % is 4000 of 42500? (=94%)
    What % is 800 of 4000? (=20%)
    What % is 150 of 800? (=19%)

    Again, I'm not sure if that's right so maybe you could check a mark scheme but that's what I'd do in an exam.
    Thankyou, It was to 1 d.p but you worked it out right
    (Original post by aadil10)
    A) 4000/42500*100 = 9.41% efficient

    B) 800/4000*100 = 20% efficient

    C) 150/800*100 = 18.75% efficient
    Thankyou!!
    Offline

    10
    ReputationRep:
    (Original post by b.l)
    Thankyou, It was to 1 d.p but you worked it out right

    Thankyou!!
    np
 
 
 
Poll
Could you cope without Wifi?
Useful resources

Study tools

Rosette

Essay expert

Learn to write like a pro with our ultimate essay guide.

Thinking about uni already?

Thinking about uni already?

See where you can apply with our uni match tool

Student chat

Ask a question

Chat to other GCSE students and get your study questions answered.

Creating

Make study resources

Create all the resources you need to get the grades.

Planner

Create your own Study Plan

Organise all your homework and exams so you never miss another deadline.

Resources by subject

From flashcards to mind maps; there's everything you need for all of your GCSE subjects.

Papers

Find past papers

100s of GCSE past papers for all your subjects at your fingertips.

Help out other students

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.