The key difference between parapatric and sympatric speciation is that parapatric speciation is the process where new species are formed from a continuously distributed population, while sympatric speciation is the process where new species are formed within the range of the ancestral population. Speciation takes place when a group within a species separates from other […]
What is the Difference Between Anagenesis and Cladogenesis
The key difference between anagenesis and cladogenesis is that anagenesis is a process that undergoes phyletic evolution within a single species of organisms, while cladogenesis is a type of branching evolution where the ancestral species splits into several new species. Evolution is a process that involves changes in the heritable characteristics of biological populations that […]
Difference Between Atavism and Retrogressive Evolution
The key difference between atavism and retrogressive evolution is that atavism is the sudden reappearance of ancestral characters in an individual while retrogressive evolution is the moving of species in the entire population towards primitive characters. Traits can appear or disappear over time. Throughout the evolutionary process, ancestral traits have changed or disappeared over generations. […]
Difference Between Ediacaran Extinction and Cambrian Explosion
The key difference between Ediacaran extinction and Cambrian explosion is that Ediacaran extinction is the first know mass extinction of macroscopic eukaryotic life while Cambrian explosion is the sudden appearance in the fossil record of complex animals with mineralized skeletal remains. Ediacaran extinction and Cambrian explosion are two events that are most important in the […]
Difference Between Founder Effect and Bottleneck Effect
The key difference between founder effect and bottleneck effect is that the founder effect occurs when a small group in a population splinters off from the original population and forms a new one, while the bottleneck effect occurs when the population contracts significantly into a smaller size due to natural disasters such as earthquakes, floods […]
Difference Between Ingroup and Outgroup in Biology
The key difference between ingroup and outgroup in biology is that an ingroup is a group of closely related taxa that is investigated for evolutionary relationships while outgroup is a reference group or a taxon outside the group of interest and more distantly related to the ingroup. Cladistics or phylogenetics is the most commonly used method […]
Difference Between UPGMA and Neighbor Joining Tree
The key difference between UPGMA and neighbor joining tree is the type of the phylogenetic tree resulting from each method. UPGMA is the technique of constructing a rooted phylogenetic tree while neighbor joining tree is the technique of constructing an unrooted phylogenetic tree. Phylogenetic trees are tree-like diagrams that show evolutionary relationships between organisms. A […]
Difference Between Maximum Parsimony and Maximum Likelihood
The key difference between maximum parsimony and maximum likelihood depends on the method used in developing the phylogenetic tree. Maximum parsimony focuses on minimizing the total character states during the phylogenetic tree construction while the maximum likelihood is a statistical approach in drawing the phylogenetic tree depending on the likelihood between genetic data. Phylogeny is […]
Difference Between Founder Effect and Genetic Drift
The key difference between founder effect and genetic drift is that a founder effect is an event of genetic drift in which a small group splits from the main population to establish a colony while genetic drift refers to the random changes of allele frequencies in small populations which cause the disappearance of particular genes […]
Difference Between Homologous Structures and Vestigial Structures
The key difference between homologous structures and vestigial structures is that homologous structures are the anatomically similar structures found in different organisms that share a common ancestor while vestigial structures are the anatomical structures which have lost their usefulness to an organism. Homologous structures are vestigial structures are two types of anatomical structures which are […]