intro to evolution 2.1

Question 1

Evolution

Answer 1

The process by which modern organisms have descended from ancient organisms

Question 2

Jean Lamarck/ why proven wrong?

Answer 2

-First theorist but very wrong
-Had the idea that species can pass on traits that they gain
-Use and disuse - individuals lose characteristics they do not require (or use) and develop characteristics that are useful
*lack of evidence / weisman

Question 3

Thomas Malthus

Answer 3

English economist That noticed that people being born faster than the rate that they were dying

Question 4

Natural selection

Answer 4

the process where organisms with variations are suited to their environment survived leave more offspring

Question 5

Fitness

Answer 5

describes how well an organism can survive /reproduce in it’s environment

Question 6

Darwin

Answer 6

Sailed on the HMS beagle”s five year voyage
-characteristics in population must be inherited
-more offspring are produced than surviving
-believed natural selection was most accurate.

Question 7

Alfred Wallace

Answer 7

Believed natural selection depends on the ability of organisms to reproduce and leave descendants.

Question 8

Big 3

Answer 8

• more individuals are born that can survive (struggle for existence)
  -There is natural heritable variation (variation and adaption)
• There is variable fitness among individuals(survival of the fittest)

Question 9

Species vary locally

Answer 9

-within a local area
- Darwin noticed that different , yet related, animal species often occupy different habitats within a local area.

Question 10

species vary globally

Answer 10

ecologically similar animal species in habituated are separated, but ecologically similar around the globe
-different areas but same temp

Question 11

species vary overtime

Answer 11

gain or lose traits based on environments