evolution Flashcards
did we evolve directly from apes?
no but we have a common ancestor
what is evolution
change in populations of a species
what is catastrophism
some organisms from the past are very different from the ones today
what is Uniformitarianism?
past geological still at work
today
what was lamark’s hypothesis?
Inherit acquired characteristics and believed life could evolve from nonliving matter
were lamarks hypothesis’s true?
no
how many years did charles darwin spend studying wild life?
5 years
what was darwins boat name (maybe extra credit)
HMS Beagle
what are the 4 steps of natural selection?
overproduction, genetic variation, struggle to survive, and differential reproduction.
what is overproduction
each species produces more offspring than can survive
what is genetic variation
species in a population have a variety of traits
what is struggle to survive
species with adaptive traits are more likely to survive and reproduce
what is carrying capacity
different ecosystems can only hold a certain amount of species
what is the evidence of evolution
fossils, biogeography, homologous structures, and vestigial structures
what are homologous structures
structures that are the same on the inside