Lamarck - evolution

Question 1

What was Lamarck’s theory of evolution?

Answer 1

• Organisms acquire new traits through their lifetime and these traits could be passed on to their offspring

Question 2

Why do giraffes haev long necks according to Lamarck?

Answer 2

• Giraffes started with short necks which they stretched to reach higher foods
• They acquired a longer neck as the trait was passed down generations

Question 3

Why was Lamarck proven wrong?

Answer 3

• We know that characteristics acquired by an organism through the lifetime DO NOT affect the DNA sequence and CANNOT be passed on generations