Chapter 13 and 14 Flashcards
(8 cards)
evolution
change in populations over time, descent w/ modification
natural selection
a process where organisms better adapted to their environment are more likely to survive and reproduce
homologous structure
a body part, organ, or system in different species that shares a common ancestry and a similar underlying structure, even if their functions have evolved to be different
vestigial structure
a feature in an organism that is reduced or impaired from its original function and no longer serves a useful purpose in the current species
analogous structure
structures that seem homologous but are not, just shaped by similar environmental pressures, sign of convergent evolution
linnaean bionominal
the two word name for species that is there genus then species
lamarc
french naturalist who thought how an animal lived affected the traits they passed doen