speciation
this type of speciation happens with no physical barriers in a population.
what is sympatric speciation?
define the morphological species concept.
what are similar physical features = same species?
this is the domain of life humans belong to.
what is eukarya?
this contributor determined animal forms are influenced by the environment.
who is George Buffon?
small flies are easy prey for spiders, and large flies are easy prey for woodpeckers. medium flies survive the best.
what is stabilizing selection?
name an example of a postzygotic barrier.
traits that are the result of convergent evolution, or similar environments.
what are analogous traits?
this is the person who created the system for naming plants and animals.
who is Carl Linnaeus?
this contributor had the 1st hypothesis of evolution, that populations evolved by the inheritance of acquired traits.
who is Jean Baptiste de Lamarck?
a deer population was once endangered due to hunting, and the surviving population today has very little genetic variation.
what is genetic drift?
species concept that utilizes multiple forms of evidence.
what is the phylogenetic species concept?
why phylogeny matters.
what is evolution & transmission of disease, or informing conservation strategies?
hypothesized evolutionary relationships are represented by this.
what is a phylogenetic tree?
this contributor determined populations grow exponentially until limited by resources.
who is Thomas Malthus?
a random change in the DNA sequence resulted in blue eyes being introduced to the human population 10,000 years ago.
what is mutation?
dispersal vs vicariance
what is dispersal involves species migrating, and vicariance is a natural split of species?
A sudden population drop increases genetic drift effects to the new population.
what is the bottleneck effect?
what the atmosphere was lacking for the first 2 billion years of earth.
what is oxygen?
this contributor did research about evolution in the Malay Archipelago.
who is Alfred Wallace?
the fastest cheetahs catch enough food to survive, reproduce, and feed their offspring.
directional selection
why adaptive radiation happens after a mass extinction event.
what is because a species has to fill the environmental niches left behind?
purpose of cell walls & capsules in prokaryotes.
what is protection and attachment?
the taxonomic groupings, from broadest to smallest.
what is domain, kingdom, phylum, class, order, family, genus, and species?
this contributor determined that species' distributions & relationships are strongly influenced by the geographical features of the environment, and not just the similarity.
who is Charles Lyell?
beetles live in an area with light and dark rocks. the medium green beetles cannot blend in, and are eaten as a result.