How do modern evolutionists view the relationship between ontogeny and phylogeny? Explain how the observation of paedomorphosis conflicts with Haeckel’s “biogenetic law.”

Q: which situation would it make sense to use the phylogenetic species concept?

A: Phylogenetic species concept The phylogenetic species concept is used to study how closely the…

Q: Ancestral state reconstruction allows evolutionary biologists to answer which of the following…

A: A phylogeny is a group of organisms' ancestral past. As it can really be understood only under…

Q: What is convergent evolution? How does it support the theory ofevolution?

A: Convergent evolution is a phenomenon in which organisms evolve similar features although they are…

Q: Why do scientists favor the clade in which derived traits evolve the fewest times?

A: Clade refers to the natural group of organisms that shows monophyletic evolution, which means they…

Q: In what ways can an evolutionary trend develop during the history of a genus or a family?

A: Evolution is defined as the process by which different types of living or biotic organisms are…

Q: What does the theory of punctuated equilibrium state about the occurrence of speciation throughout…

A: Niles Eldredge and Stephen Jay Gould in 1972 published a paper on their landmark theory called…

Q: Is coevolution the same thing as convergent evolution? Why or why not?

A: Coevolution and convergent evolution are not the same. They are different patterns of evolution.

Q: How do scientists infer common lineages of different organisms based on their structures?

A: Common lineages/descent It is a term within Evolutionary biology which refers to the common ancestry…

Q: Most phylogenetic trees always show a two branch divergence from the common ancestor. Do you think…

A: The change in the heritable characteristics in a population over a period is termed as evolution.…

Q: What is the phylogenetic definition of a species? A) A group of individuals that can breed and…

A: The evolutionary history of a species is referred to as phylogeny.

Q: Based on the phylogenetic tree below, which of the following species has hair? Hair Hinged jaw…

A: The evolutionary history of species is referred to as phylogeny. Phylogenetics is the analysis of…

Q: In evolution, what is Phylogenetic path analysis?

A: Phylogenesis refers to the diversification and evolutionary development of a group of organisms or…

Q: What is convergent evolution? Give an example.

A: Evolution is the heritable characteristic change over successive generations. The characteristics…

Q: In the late 1800s, a biologist studying animal embryos coined the phrase “ontogeny recapitulates…

A: The hypothesis of recapitulation is otherwise called the biogenic law. The hypothesis was proposed…

Q: 25. On this phylogeny, which letter represents the shared common ancestor of lizards and elephants?…

A: A phylogenetic tress helps in estimating the historical connections present between species or…

Q: In what sense does the biological species concept focus on evolutionary mechanisms and the…

A: Species recognized by the "biological species concept" are recognized by their methods of…

Q: Can convergent (or parallel) evolution of similar morphology in two different lineages involve DNA…

A: Evolution is the natural process where is a change in the heritable characteristics of biological…

Q: List 3 types of evidence scientists used to construct phylogenies?  How would you rank the above…

A: Phylogeny is the study of relationships among different group of organisms and their evolutionary…

Q: How can phylogenetics be used to reconstruct the evolutionary history of specific traits in a group…

A: Phylogeny is the study of relationships among different groups of organisms and their evolutionary…

Q: How is pseudoextinction related to gradual evolutionary change?

A: Pseudoextinction occurs when the ancestral members of a species are extinct but their descendants…

Q: What hypothesis did Alfred Russel Wallace make about the uniquebirds and mammals on either side of…

A: Alfred Russel Wallace proposed the idea of the Wallace line in the Malay archipelago. The Wallace…

Q: Determine whether each of the following traits are the result of convergent evolution?

A: Convergent evolution is the process where distantly related organisms independently evolve from…

Q: From the early 1700s to the modern day, how did various lines of evidence clarify and improve…

A: Evolution is change in the heritable attributes of organic populaces over progressive ages. These…

Q: Where on the cladogram would you place the common ancestor of brown algae and water molds? The…

A: A cladogram is a diagram that shows the evolutionary relationships between organisms. It is used to…

Q: The tail flukes of a whale are _________to the tails of fish- they are not anatomically the same but…

A: Evolution is change in heritable characteristics of species over period of generation.

Q: Is it the case that a phylogeny based on a single gene sequence is usually the same as a phylogeny…

A: Phylogenetic analysis is a modern technique to find out evolutionary relationships and genetic…

Q: How does the biological species concept differ from earlier typological concepts of a species? Why…

A: Taxonomy is the field of biology that classifies living and extinct organisms according to the set…

Q: Why should we care "Molecular origins of rapid and continuous morphological evolution" research…

A: Evolutionary developmental biology is considered a new norm in evolutionary biology. It arose from…

Q: why does pattern of organization of animals portray evolutionary trnds but do not depict…

A: Evolutionary path is very complex and not straight.

Q: "Three scientist have three hypotheses (Trees 1-3) about the evolutionary relationships between…

A: Phlyogeny represents the evolutionary relationship between taxons.

Q: The Manx cat is in the domestic cat group, and the bobcat is in the lynx group. Both have a trait in…

A: The evolution is a change in the genetic makeup (and often, the heritable features) of a population…

Q: How Molecular Clocks Measure the Rate of Evolutionary Change ?

A: Fossils provide a certain amount of information earlier. With the advancement of molecular biology,…

Q: Explain how genetic information-along with an understanding of the process of descent with…

A: Darwin, a pioneer for evolution, used the phrase descent with…

Q: What is Biogenetic law? How does comparative embryology provides evidences for evolution?

A: Evolution is defined as the change in the characteristics of a species over several generations,…

Q: Linear evolution suggests that there is a ladder, or step- progression, to evolution over time one…

A: The pre-Darwinian theories established by Aristotle, when species were believed to be static…

Q: How is concept of a common ancestor and concept known as descent with modification interconnected?

A: Descent with modification refers to the passing on of traits from parent organisms to their…

Q: Which of the following are true about outgroups? (multiple answers allowed) A) they help identify…

A: Evolution is any alteration in the heritable characteristics of the population. These…

Q: What is the driving force behind divergent evolution? Explain.

A: Introduction We have to explain the driving force behind divergent evolution.

Q: What do the multiregional and out-of-Africa hypotheses predict about the age of the common ancestor…

A: To determine: To determine what the multiregional and out-of-Africa hypotheses predict about the age…

Q: What does the regional variation in archaic Homo sapiens represent in terms of the broader story of…

A: Evolution is the process of a species' features changing over numerous generations through natural…

Q: To test evolutionary hypotheses, you make a phylogeny of a group of organisms based on six traits: -…

A: The phylogenetic tree is given in the question. The phylogenetic tree depicts the relationship…

Q: In the late 1800's, a biologist studying animal embryos coined the phrase, "ontogeny recapitulates…

A: “Ontogeny recapitulates phylogeny” is a familiar phrase coined by Ernst Hackel during the period of…

Q: How did the data from biogeography, comparative morphology, comparative embryology, helped in making…

A: Unified Evolution Theory. Environmental epigenetic changes elevate hereditary transformations to…

Q: From the early 1700s to the modern day, how did various lines of evidence refine scientists'…

A: Cetacean Classified as a group that comprises whales, and dolphins along with the porpoises.…

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.