The introduction of Darwin's theory of evolutionby natural selection has given a new branch of biological classification - Evolutionary taxonomy or Darwinian classification, building phylogenetic trees, permitting paraphyletic taxa. The...
1 Answers 1 viewsModern Synthesis is a theory about how evolution works at the level of genes, phenotypes, and populations whereas Darwinism was concerned mainly with organisms, speciation and individuals. As natural selection...
1 Answers 1 viewsAccording to Modern Synthetic theory, natural selection brings about evolutionary change by favoring differential reproduction of genes, which produce change in gene frequency from one generation to the next. Natural...
1 Answers 1 views1)There are five main tenets of Darwin's theory of evolution:Each generation generates more offspring than can be supported by the environment. Environmental resources for things such as food and shelter...
1 Answers 1 viewsThe fundamental forces behind evolutionary change through natural selection are differences in survival and reproduction among individuals. In many species of animals and some plants differences in reproductive success can...
1 Answers 1 viewsThe members of natural populations vary with respect to characteristics at all levels. They differ in their morphology, their microscopic structure, their chromosomes, the amino acid sequences of their proteins....
1 Answers 1 viewsLamarck’s theory of evolution was based around how organisms either plants or animals change during their lifetime, and then pass these changes onto their offspring. For instance, Lamarck believed that...
1 Answers 1 viewsIn a peacock a female may choose a male from several males because he is attractive.Female peacocks often choose males for the quality of their trains, which vary in the...
1 Answers 1 viewsThe mechanism that Darwin proposed forevolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing...
1 Answers 1 viewsAccording to Darwin all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce and not...
1 Answers 1 views