Fundamentals of Evolution, BIOGEOGRAPHY

Question 1

What can be seen from a fossil record (Increase^2)

Answer 1

• Increase in complexity
• increase in diversity ( Accumulation of Evolution)
• More extinct species (Failure to adapt to environment)
• Overall increase in size

Question 2

Define Biogeography

Answer 2

is the study of where and how species occur

Question 3

Explain Darwins theory with reference to a clustering of closely allied species

Answer 3

Darwin and Wallace observed that if species descended from a common ancestor then it would make sense that the closely related species would be located nearby and descent from common ancestor

Question 4

What does biogeography suggest?

Answer 4

It suggests that in regions of same LATITUDE and CLIMATIC CONDITIONS: regions have same major groups but not same species

Examples ( Flat nosed and point nosed monkeys)

Question 5

Explain distribution of species on oceanic islands

Answer 5

It shows EVIDENCE of descent with modification because island species are more closely related to species on the nearest mainland

Question 6

Account for Biogeography of fossils

Answer 6

Darwin noted that the fossils of EXTINCT species resembled species living in same region