Please use and cite any source(s) you can find to answer the following questions: 1. List and describe the different ways in which species are defined. 2. Explain how each of the following makes it difficult to clearly define a species: variation within a species, geographically isolated populations, asexual species, fossil organisms. 3. List and describe the pre-zygotic barriers as well as the post-zygotic barriers. 4. Explain why allopatric speciation would be less likely on an island close to a mainland than on a more isolated island

Q: 1) Choose 2 of the four evolutionary forces and explain it in your own words with an example.

A: Evolution is the change in the characteristics of a species over several generations. There are four…

Q: in the future there may be more than one species of ostrich ? True or false 2)There is evidence of…

A: Development of one species takes a great deal of time because many factors operate to evolve a…

Q: result in Allopatric Speciation [enter 1 for the first step, 2 for the second, etc; write only the…

A:

Q: Show 2. The following table shows a list of species and whether a certain trait (character) is…

A: Cladogram  It is a evolutionary tree that depicts the evolutionary relationship between organisms.

Q: 1. Read the following hypothetical situation. Then answer the question. A female fly, full of…

A: A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is…

Q: Which of the following is a problem with using the Biological Species Concept? A. it doesn't apply…

A: Introduction A species taxon, according to the Biological Species Concept, is a group of creatures…

Q: If the phylogenetic species concept (PSC) were used  to define species, rather than the biological…

A: The phylogenetic species concept is a attempt to explain species by their relationships to other…

Q: 1. Please examine the character matrix below:. Traits | $ * | 7 1 2 3 4 5 6 7

A: Evolution means change. It is the study of origin of life.  A phylogenetic tree is used to depict…

Q: ethical dilemma

A: An ethical dilemma takes place in a decision- making context where any of the available options…

Q: Which of the following is an example of postzygotic reproductive isolation?a. Sperm of species A…

A: A group pf similar organisms which are able to interbreed to produce fertile and viable offspring is…

Q: Choose True for yes and False for no, for each of the statements 1) The distribution of the two…

A: Given,          A,B,C species share a common ancestry but they are present in different places .And…

Q: In comparative studies, it is important to be aware of relationships among species because a trait…

A: Introduction :- Comparative studies are investigations to assess and evaluate a phenomena and/or…

Q: 1.  An earthquake and tsunami, Richter scale of 7, destroyed a small village near the epicenter in…

A: *Sympatric speciation means  the splitting of an ancestral species into two or more groups that are…

Q: Pre-mating barriers to reproduction often evolve relatively late in the process of speciation.…

A: Reproductive barriers are barriers that prevent reproduction between two different groups of…

Q: 2. Explore "Reproductive Barriers" at https://learn.genetics.utah.edu/content/evolution/barriers/ to…

A: Hi! Thank you for the questions. Since we do not answer questions with external references, the…

Q: Explain why parapatric speciation is more likely to occur in sedentary organisms

A: Parapatric speciation occurs when new species originate from a single ancestor while residing in…

Q: Define speciation and the role of genetic divergence among populations in creating new species.

A: Speciation is the emergence of new species in a given population. It creates reproductive isolation.…

Q: explain the following : 1. Does chromosome structure differ between humans and their closest…

A: Humans and chimpanzees are said to be sister species. They are related to each other in many ways…

Q: Consider the graphic that is presented and depicts the end-point for the following scenario. At…

A: Cladogram is a kind of diagrammatic tree which represents the relationship between the different…

Q: Scientists studying reproduction compared three closely related species of bagworm moths. The…

A: Reproduction is the biological process for producing new young ones from parent.

Q: Provide three distinct examples of two gender families, including those with multiple parents.…

A: Animal diversity refers to the variety of different species and types of animals that exist on…

Q: You are a field biologist studying 14 species of rodent that are found on both sides of the Grand…

A: A phylogenetic tree is the diagrammatic representation of the evolutionary relationships among the…

Q: Create a scenario in which red pandas undergoes a speciation event. Select one of the following…

A: Answer :- I think due to natural selection of climate change in which red pandas undergoes a…

Q: The Baltimore Orioles and Black-backed Orioles species complex has conflicting evidence in support…

A: The Baltimore Oriole and the Black-backed Oriole may be sister taxa, according to a recent…

Q: Fixity of Species refers to… Group of answer choices A-the theory that species exist at a fixed…

A: The species are fixed was the idea that was believed before Darwin's theory in the 18th century.…

Q: Define Species. Explain the types of speciation and the steps that lead to speciation. Provide…

A: Introduction :- A species is a group of plants or animals that may reproduce with one another and…

Q: Swordtails, platyfish and Poecilia species are incapable of interbreeding with each other but…

A: Biological species defines the ability of two organisms to mate and produce offspring successfully…

Q: Construct a phylogenetic tree with the species and label the traits according to their number (ex.…

A: Given animals are different species of class Mammalia. Their phylogenetic tree is given below:

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.