Unit 5 study guide Flashcards
definition of evolution
the process of granisms developing overtime
bajau people
can hold their breath for a long time to dive for food
Andes people
more red blood cells
Himalayan people
breathe faster
lactose persistence
most of the human population is lactose intolerant, but some places had lactose persistence and were able to survive in times of famine and stress
evidence supporting evolution
Fossils, homologous and analogous structures, biogeography, early embryonic similarities
homologous structures
Structures on related organisms but have different purposes
analogous structures
Structures on unrelated organisms that have the same function
convergent evolution
Organisms are not related and in 2 different areas of the world, but have similar environmental conditions so evolve the same
divergent evolution
Started as one species but became more dissimilar overtime
reproductive isolation
Behavioral, geographical, temporal
define gene pool
A group of living organisms capable of interbreeding
define phylogeny
Study of evolutionary history between organisms
describe reproduvtive isolation
Behavioral- different mating behavior, geographical- something physically seperates them, temporal- timing separates them
Lamarck’s ideas
Because he got people to consider that organisms can change