Crossword Questions Flashcards
_____ of the fittest is darwins explanation for diversity in natire
Survival
Preserved remains of an ancient organism
Fossil
Evolution of a species without a physical barrier.
Sympatric
Random change in genetic material ghat can be harmfal, lethal, or advantageous
Mutation
An inherited trait that improves the chances of survival and reproduction for an organism
Adaption
Change is the look (phenotype) of an organism over time
Macroeveolution
Form of evolution in which different organisms produce species that are similar in appearance and behaviour.
Convergent
A change in the allelic frequencies in a population that is due to chance.
Genetic drift
Form of evolution also known ad adaptive radiation
Divergent
Acts to select individuals that are the best adapted for survival and reproduction (similar to artificial selection)
Natiral selection
Type of natural selection in which one extreme phenotype becomes a favourable adaption.
Directional
State of existence that involves very little or no change
Genetic equilibrium
Structures that look similar but function differently
Homologous
Entire genetic content of a population
Gene pool
____ organs are remnants of structures that were once useful in primitive ancestors but are now disppearing
Vestigial