Evidence for Evolution

Question 1

Darwins retern

Answer 1

• had so many questions abt species
• he began writing his first notebook on what he called the “transmutation of species”
• continued researhc on this

Question 2

Evidence for the Theory

Answer 2

There were many forms of evidence that convinced Darwin of the evolution of species through natural selection

Question 3

animals on remote islands

Answer 3

• unusual examples of animal behaviour
• animals had no fear for humans
• caused by evoluation through living and evolving in a location with no natural predators

Question 4

Biogeography

Answer 4

• ## observed geographic patterns of distribution of species.

Question 5

Darwin’s Hypotheses

Answer 5

the patterns he had observed regarding the distribution of
species, both living and extinct, were evidence that species might have evolved

Question 6

oceanic islands

Answer 6

• became populated by species that arrived by water or air.
• After the species became established, many evolved into new species over time.

Question 7

isloated islands

Answer 7

considered evolution to be the best explanation for why isolated islands
had many species that were found nowhere else, and why these species bore a resemblance to species on the nearest continental land mass

Question 8

Observations from the Galapagos
Islands

Answer 8

• many species of plants, birds,
  insects, , reptiles
  Only these kinds of organisms are able to reach remote
  islands by crossing large expanses of open ocean.
• no native amphibians and very few
  land mammals
  Amphibians and most mammals are unable to cross
  open ocean and will not be found on remote islands.
• many unique species found nowhere
  else on Earth
  Over time, ancestral species have evolved into new
  geographically isolated species.
• unique species most closely
  resemble species on the nearest
  continental land mass
  Unique species are descendants of ancestral species
  from the nearest continental land masses and will
  exhibit some similarities

Question 9

Testing Darwin’s Hypotheses

Answer 9

• went his hawwai and hyptheis were correct
• however, other answer can be displayed such as animals not being able to live there or creating bad impact to enviorment

Question 10

homologous features

Answer 10

• Come from a common ancestor. - - Same structure, different function. - Comes from divergent evolution
• Closely related species share homologous developmental processes and patterns

Question 11

Analogous

Answer 11

Different structure same function (wings). Results from convergent evolution

Question 12

Vestigial

Answer 12

Remain in organisms but are no longer useful
- useful for ansestors

Question 13

Competition within Populations

Answer 13

• Many species produce large numbers of off spring, but not all survive
• There is a limit to the size of the population that an environment can support
• The result is competition for survival between
  members of the same species.
• the environment might be favouring certain individuals in
  this struggle for surviva

Question 14

Anatomical Oddities

Answer 14

goosebumps are helpful to keep body warm and help scare predtors (look bigger) in animals but serve no use in humans