Lesson 19 Origin and Evolution of Life

Q1. Louis Pasteur provided strong experimental support for:

Biogenesis Spontaneous generation Use and disuse Mutation theory

Q2. Which type of selection favours both extreme phenotypes?

Disruptive selection Stabilizing selection Directional selection Artificial selection

Q3. Analogous organs have the same evolutionary origin.

True False

Q4. Which term describes the distribution of organisms across islands and continents?

Biogeography Histology Cytology Physiology

Q5. Bat wing and insect wing are examples of:

Analogous organs Homologous organs Vestigial organs Sensory organs

Q6. Analogous organs are commonly associated with:

Convergent evolution Divergent evolution Biogenesis Lamarckism

Q7. According to Lamarck, frequent use of an organ tends to make it:

More developed Disappear immediately Become a fossil Lose all function

Q8. Miller and Urey demonstrated the formation of organic molecules under simulated early-Earth conditions.

True False

Q9. The theory of inheritance of acquired characters was proposed by:

Lamarck Darwin Mendel Pasteur

Q10. The theory of natural selection is strongly associated with:

Darwin Mendel only Pasteur Ohm