Change over time Flashcards
Variation
slight difference in an inherited trait of individual members of a species.
Natural selection
process by which populations with organisms with variations that can help them survive their environment longer, and reproduce more than those that do not have the variations.
Mimicry
The resemblance of one species to another species.
- another type of adaptation
Dichotomous key
series of descriptions arranged in pairs that leads the user to the identification of an unknown organism.
What does the scientific name consist of?
Genus + Species
Cladogram
a branched diagram that shows the relationship among organisms, including common ancestors.
Adaptation
inherited trait that increases an organisms chance of surviving and reproducing in its environment
camouflage
adaptation that enables a species to blend in with its environment
Who is Charles Darwin?
- english naturalist
- in the mid 1800s developed a theory of how evolution works.
- spent many years observing plants and animals in thier natural habitats before developing his theory
Darwins book he made
The origin of species
What boat did Darwin travel on?
H.M.S beagle
Where was a famous place Darwin went to to develop his theory
Galapagos Islands
Homologous structures
body parts that are similar in structure/position but different in function
Analogous structures
body parts that are similar in function but different in structure/position
Does Homologous or Analogous structure show common ancestry?
Homologous
