A field of Biology that provides an in-depth understanding of how species evolve through genetic changes overtime. Cladistics Taxonomy Phylogenetics Systematics

Q: Compare and contrast the approaches of cladistics and phenetics for making phylogenetic trees.

A: A phylogenetic tree depicts the evolutionary relationship between the organisms and it is based on…

Q: What type of species concept would you use to classify extinct species that only exist in fo…

A: Fossils are the remains of dead organisms.

Q: Evidence of small-scale evolutionary changes is directly observed in an organism with short life…

A: In general, evolution is the gradual alteration of a population's genetic composition (and…

Q: Whales and sharks both have dorsal fins which keep them stable while swimming through the water.…

A: Evolution refers to the process which involves alteration in the characteristics of an individual.…

Q: What is a group of organisms that are able to interbreed and form viable offspring?     Species…

A: Animals, plants or any other living organisms are present in different category depending upon their…

Q: To analyze: The new adaptations within a species that results from natural selection.

A: Microevolution is defined as a change in the frequency of alleles in a population that occurs over…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.