Below is a phylogenetic tree of flightless birds. Which species is the common ancestor, with shared characteristics to the flightless birds shown below?  A) Great spotted kiwi B) Chicken C) Ostrich D) Greater rhea

Q: How are shared ancestral characters and shared derived characters different? How is the concept of…

A: Homology is defined by  "the relationship between two organs of common descent, which therefore have…

Q: Which node, 1-8, represents the most recent common ancestor of the Gray Wolf and the Domestic dog?…

A: Monophyletic taxon is one that includes the most recent common ancestor of a group of organisms…

Q: Please help me identify which of the following cranial traits listed are present in the species…

A: Introduction :- Skull is the skeleton of head .In mammals it consists of a cranium which protects…

Q: Primate taxa having Y-5 molars AND ischial callosities include: Group of answer choices: ceboidea…

A: Y 5 molar  These molars have five cusps with grooves in between them and form a Y shape.  ischial…

Q: is estimated that of all the species that have ever lived, between 90% and 95% have become extinct.…

A: Horse belong to family equidae and they belong to class mammals.they are chacterised by the presence…

Q: What is the function of including an outgroup in this phylogeny? After all, the point of the…

A: An outgroup is a lineage that falls outside the clade being studied but is closely related to that…

Q: According to the fossil record, what did the common ancestors of modern whales and dolphins look…

A: Evolution is the orderly change from one form to another form.

Q: Based on only what is depicted in this cladogram, what is the most parsimonious explanation for the…

A: Reptiles are the terapod animals in class reptilia . the snake and the lizard belongs to the class…

Q: Best on the phylogenetic tree shown here, which organisms are most closely related to dinosaurs and…

A: The phylogenetic tree helps to identify evolutionary relationships among various organisms.  The…

Q: In the context of the evolutionary relationship among ants, wasps, and bees, how come that these…

A: The evolutionary relationship helps to understand the relationship among the different species,…

Q: What are sister groups?     Two groups of closely related organisms that share a common ancestor…

A: Species is the basic unit of classification and a taxonomic rank.A species is the largest group of…

Q: When Charles Darwin visited the Galapagos Islands, he observed the marine iguana. He later decided…

A: Speciation is a term which describes the process in which new species forms from the existing…

Q: Based on this phylogenetic tree, which organisms are most closely related? Geckos ANCESTRAL No limbs…

A: The correct option is - (B). According to the given phylogenetic tree, the most closely related…

Q: If an altered structure, such as the long neck of the giraffe, is advantageous, why don’t all…

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: Based on this phylogenetic tree, which organisms are the most closely related? B. bonærensis…

A: Evolution is the process of slow and gradual change over a period of time. Over a period of time,…

Q: What are some of the advantages of using molecular data in evolutionarystudies?

A: Genetic variations occur as a result of mutation, which in turn, produces new recombination, alleles…

Q: How might we know what the common ancestor of frogs and humans may have been? Where could we look…

A: Similarities in characters of two organisms definitely suggest that they had some common ancestor…

Q: The following dato shows the presence of four enzymes across three species Species Enzyme 1 Enzyme 2…

A: Phylogenetic tree is a diagrammatic representation in which taxa are present on one side while…

Q: What is the purpose of using an “outgroup” when reconstructing a phylogenetic tree?

A: An outgroup is a group of species that do not belong to the group being studied for evolutionary…

Q: Create a phylogenetic tree with these organisn: chicken, tilpia,human, chimpanzee, giraffe tiger,…

A: A phylogenetic tree, also known as a phylogeny, is a graph that displays how various species,…

Q: What term did Lamarck use to explain how new species emerged

A: Jean-Baptiste Lamrack was a French naturalist, who believed if the body parts were not being used,…

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: The retention of juvenile characteristics into adulthood is known as_______________ Examples of this…

A: Juvenile phase is that phase in which organism has not acquired sexual maturity yet.…

Q: What trait separates amphibians from primates on this cladogram?  What separates rabbits and…

A: A phylogeny is a hypothetical relationship between groups of animals that is represented by a…

Q: Which one or more of the 5 clades contain the Eumetazoa?

A: Eumetazoa (diploblasts) are animals whose major characteristics are true tissues (cells embedded…

Q: What is the difference between primitive and advanced species and why is it now considered wrong to…

A: A primitive species has a simple body structure and ancient body design features not changed much…

Q: How does the presence of gill slits in all vertebrate embryos support the theory of descent from a…

A: Gill slits are any of the openings or clefts between the gill arches in aquatic vertebrates that…

Q: Diagram Analysis          Study the phylogenetic tree below and explain the phrase, “Man and ape,…

A: Cladograms (phylogenetic trees) are graphical charts that depict the hypothetical correlations…

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: Examine the phylogenetic tree of several species of lizards. Zebra-tailed Lizard Western Whiptal…

A: Introduction A phylogenetic tree is a graphic that shows how creatures have evolved over time.…

Q: a) Is there a monophyletic group that includes only the tapir, rhinoceros, and equids (Horses)? If…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following identifies and describes the student model that is most consistent with the…

A: A phylogenetic tree or evolutionary tree is a branching diagram or ‘tree’ showing the evolutionary…

Q: What is the phylogenetic relationship between Homo heidelbergensis, H. sapiens, and  H.…

A: Homo heidelbergensis began to develop regional differences that eventually gave rise to two species…

Q: What is the common ground between evolutionary biologists and developmental biologists who have…

A: Evo-Devo is well stated that they are been sued as the abbreviation for evolutionary developmental…

Q: Which gene family was found to control the development and differentiation of limbs in vertebrate…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: How do Primates fit into the larger phylogenetic tree for all living things?

A: It has been very difficult to resolve the divergence time and the origins of the basal lineage due…

Q: Observe the figure below. Draw a tree that: (a) contains the following taxa: armadillos, rabbits,…

A: The phylogenetic tree or phylogenetic studies re[present the evolutionary relationship among a group…

Q: For the first phylogenetic tree, if we assume absolute time is NOT represented, can we say that the…

A: A phylogenetic tree is a visual representation of the relationship between different organisms,…

Q: Based on the phylogenetic tree, if you go back in time and look for species B, you will find that…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: How is the traditional animal family tree similar or different from the  phylogeny reflecting…

A: Phylogenetic trees represent evolutionary relatedness between living organisms. These relatednesses…

Q: Which tree diagram best shows the relationship between fish, cetaceans, and mammals?

A: Answer :- The tree diagram on the right best shows the relationship between fish, cetaceans, and…

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: Species A and B have long wings, whereas species C has short wings. Which of the following pieces of…

A: Experimental evolutionary evidence always tells us the derivation of descendants from the ancestors.…

Q: Lobe finned fishes are considered to be an evolutionarily important group because;  (bubble both…

A: Lobe-finned fishes are very important from an evolutionary point of view. Some characteristic…

Q: Why is the Fayum depression in Egypt such an important site for understanding the origin and…

A: Anthropoid primates mainly  includes the apes; humans ; monkeys.Some of the feature shared by the…

Q: A few other mammal taxa, including fruit bats, also lack the ability to make vitamin C. Is the…

A: A trait or character is said to be homologous between two species if these species shared a common…

Q: This is a potential phylogenetic tree created by anthropologists at UC Berkeley. A-Ardipithecus…

A: Phylogenetic tree: - it is a diagram that helps to represent the evolutionary relationships among…

Q: What contributed to the natural selection of the finches' beaks?

A: Darwinism is a theory of biological evolution proposed by Charles Darwin (1809–1882) and others,…

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.