Darwin (2/5)

Question 1

Darwin’s 5 Observations While Sailing on HMS Beagle

Answer 1

1. ) Fossils are animals that are now extinct
2. ) The distinction between species and variety of species is sometimes unclear
3. ) Geographic variation and species replacement
4. ) different varieties in different islands
5. ) South American affinities of Galapagos Island populations

Question 2

Conclusion of Darwin’s 5 Observations

Answer 2

Over time, from place to place, species change (evolve) to survive

Question 3

Alfred Russel Wallace

Answer 3

• traveled in the Amazon collecting species (but they all burned when his ship went up in flames
• discovered that the Malay Archipelago is a mixing of Asiatic and Australian fauna and flora (Asiatic = placental animals; Australian = marsupial)

Question 4

The Wallace Line

Answer 4

a line that passes between Bali and Lombok sepaarating the Asiatic and Australian fauna

• represented the importance of biogeography and demonstrated how animals living in similar situations evolve differently when isolated

Question 5

Mammals

Answer 5

Placentals (Asiatic, found in Borneo): humans, dogs, etc.

Marsupials (Australian, found in New Guinea): kangaroos, wallabies, etc.

Monotremes: egg laying creatures, platypus and echidna