- Darwin proposed natural selection as the mechanism of evolution.
- Structures that represent a common ancestor _____________________________, but now serve a different function
- The oldest fossils on record are basically fossilized layers of prokaryotic mats (biofilms containing cyanobacteria)called ___________________
- The first person to publish the theory of natural selection was
- Paleontologist study _____________________, the first person to develop this field was _________
- ________ is recognized as the father of evolution but ________ also helped develop the ideaCharles Darwin; Alfred WallaceThomas Malthus; Peter GrantAlfred Wallace; Thomas Malthus
- The study of the geographic distribution of organisms is
- Once a branch point occurs, ________ of the branches evolve.bothonly oneone, both, or neither
- Charles Darwin and Alfred Wallace both developed similar ideas about ________, and refined the theory together.
- Structures in multiple species that serve the same function, that arose independently
- In order for organisms to change over generations, there must first be ________.genetic variationenvironmental pressureCompetition
- The branches in phylogenetic trees ________.account for time since species divergedare aligned by physical appearanceindicate evolutionary order
- __________________________ proposed that characters used most frequently would develop and be passed onto their offspring
- Changes in allele frequencies are at the core of how ________ occurs.natural selectionmutationevolution
- In the "Origin of Species", Darwin didn't use the word ____________________________, instead he used the term_______________________________
- ________ summarizes the evolution of various life forms on earth.A phylogenetic treeA taxonomyA scientific name
- A common misconception about evolution is that ________.genetic mutations are always passed on to the next generationenvironmental changes cause genetic mutationsit does not have a goal
- Scientists studying shared anatomical features are looking at ________.homologous structuresvestigial structuresredundant structures
- Natural selection is ________.based on present environmental conditionsconstant and unchangingthe process that causes genetic mutations
- Relative fitness measures ________ in relation to others of the same population.the actual contribution of offspring to the next generationthe potential contribution of offspring to the next generationthe actual performance and traits of offspring