StudyWithSmile — free flashcards, quizzes and exam practice for school students
Paths of Evolution
Biology · Kerala SSLC (Class 10) · English Medium · 37 questions and answers
Sample questions
- Q: What is evolution?
- A: Evolution is the slow and gradual change in living organisms over a long period of time, leading to the formation of new species from pre-existing ones.
- Q: Who proposed the theory of Natural Selection?
- A: Charles Darwin, in his book 'On the Origin of Species'.
- Q: What is meant by 'survival of the fittest'?
- A: Organisms that are best adapted to their environment survive, reproduce and pass on their favourable characters, while less-adapted ones die out.
- Q: What was Lamarck's theory of evolution?
- A: Lamarck proposed the 'inheritance of acquired characters' — that characters gained by an organism during its lifetime (through use or disuse of organs) are passed on to its offspring.
- Q: What are homologous organs? Give an example.
- A: Organs with the same basic structure and origin but different functions, e.g. the forelimbs of humans, whales, bats and cats. They indicate common ancestry (divergent evolution).
Sign in free to study all 37 questions with flashcards, quizzes and spaced revision.