What is a clade?

Q: Referring to the same tree above, which of the following would be a synapomorphy for the DEF clade?

A: Phylogeny Phylogeny is the study of evolutionary relationships amongst organisms and how they are…

Q: What is a Taxonomy and Taxon?

A: An organism refers to a living thing, which has an organized structure, can react to grow, adapt,…

Q: What is Phylogeny? Explain the importance of Phylogeny ?

A: Phylogeny - It is defined as the evolutionary relationships in different groups of organisms. It…

Q: What is evolutionary history of a species called?

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

Q: What is speciation continuum?

A: Speciation continuum It can be defined as the continous sequence of genetically based changes that…

Q: How Do New Species Form?

A: In science, a species category is the essential/basic unit of characterization and an ordered…

Q: How are taxonomic characters recognized? How are such characters used to construct a cladogram?

A: Taxonomy is the branch of science concerned with classifying the organisms on the basis of their…

Q: 1. Circle in one colour 3 examples of clades. Circle in another colour 3 examples that are NOT…

A: Since you've asked multiple questions, we are answering the first three questions for you. If you…

Q: How Many Species Exist?

A: The earth consists of two main factors- biotic and abiotic. The biotic factors are the living…

Q: What makes a species

A: Taxonomy  In biology taxonomy is the classifying group of organisms according to their characters…

Q: What is the assumption used when arranging species on a phylogenetic tree?

A: Evolution is a change in the “genetic composition” of a population over multiple generations. It is…

Q: What does a cladogram tell us?

A: Classification is the arrangement of organisms into groups and sub-groups on the basis of…

Q: What is meant by the term “common ancestor”? Give an example.

A: Evolution is the change in the genetic makeup of population over time.  Evolution can be categorized…

Q: How many clades are represented in Figure 20?

A: Clade  A clade is a graphic representation of group of organisms that includes it's ancestor as well…

Q: What is meant by term Allelomorphs?

A: Two British geneticists,  William Bateson, and Edith Rebecca Saunders are credited for discovering…

Q: what is a diagram used to represent evolutionary relationships between taxa called

A: Introduction Evolution:- It is the biological change in the characteristics of a species over…

Q: What are the advantages of using domains, rather than kingdoms, as the highest rank of…

A: Taxonomy is the science of classification of organisms based on their morphology, biochemical…

Q: Do these trees tell the same story?

A: A phylogenetic tree is a two-dimensional graphical depiction that demonstrates the evolutionary…

Q: Describe the key features of phylogenetic trees.

A: Phylogenetic trees are also known as evolutionary trees. It shows the evolutionary relationship…

Q: Which is more common: anagenesis or cladogenesis ?

A: Evolution is the process by which different species of organisms arise from earlier life forms. It…

Q: How many rooted trees are theoretically possible for a group of seven organisms? How many for twelve…

A: An evolutionary tree or phylogenetic tree is a diagram that shows how different organisms are…

Q: How is family related to a species?

A: Family is considered as one of the eight hierarchical taxonomic categories used in Carolus Linnaeus…

Q: Closely related species are grouped together into                   (singular,                ). By…

A: Closely related species are grouped together into genera (singular, genus).

Q: Are members of a clade similar because they share a common ancestor, or do they belong to the same…

A:

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: Which taxonomy is based on the interrelationships among individuals due to chromosomal similarities?

A: Chromosomes are long thread like structures present in the nucleus of all the cells. The DNA…

Q: What is a monophyletic clade? What is its difference between paraphyletic and polyphyletic clades?

A: Cladograms or phylogenetic trees refer to branched tree-like diagrams that are used to represent the…

Q: What is the biological species concept?

A: The biological species concept describes about the species as they are members of populations that…

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: What are the unique/distinctive characteristics of a specific taxon relative to other taxa?

A: *Taxon is plural of taxa it means group of one or more organism to form as a unit. *It also refers…

Q: Which of the following groups is monophyletic? Select one:

A: A monophyletic group is the one which includes an ancestor and all of its descendants. A…

Q: In cladograms are outgroups ang basal groups the same? Explain.

A: A tree like or comb like taxonomic relationship among different groups of organisms is called…

Q: how many clades are in this tree?

A: Clade means a group of biological taxa that includes all descendants of one common ancestor.

Q: What is (are) the out group(s) in this cladogram?

A: Cladogram:          A spider web network that cleaves into various groups of animals (phylogeny),…

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: If you could protect from extinction only the lineages derived from two of the nodes in the figure,…

A: Phylogenetic diversity (PD), which is a measurement of the branch lengths in a phylogenetic tree, is…

Q: What is the cause of speciation according to Hugo De Vries?

A: A species is referred to as one or more populations of interbreeding organisms that are…

Q: According to the cladogram, what group is most closely related to Flowering plants? Why?

A: Cladogram is a dendrogram or branching diagram which shows lineage divergence.

Q: Which of the following groups is monophyletic?

A: The different organisms have different type of origin. Depending on their morphological characters…

Q: What is a species, according to the biological species concept?

A: Introduction:- Geographic isolation is a common mechanism for the speciation process to get started.…

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

A:

Q: What are species?

A: An organism is any individual entity that embodies the properties of life. An organism has an…

Q: What notion is common to morphological, phylogenetic and biological species concepts?

A: The "species concept" is the set of questions that arises while classifying organisms into different…

Q: What are the three mainsteps for a good study of agenetic family tree?

A: Genetic conditions are transferred from parent to offspring. Sometimes, they get expressed in the…

Q: Which group is the most ancestral?

A: All living things are descended from a single progenitor. The Theory of Common Descent demonstrate…

Q: What explanation can be derived from the constructed phylogenetic tree above?

A: The evolutionary relationship between organisms is represented by a tree-like diagram known as the…

Q: Some organisms that appear very closely related on a phylogenetic tree may not actually be closely…

A: A phylogenetic tree can be defined as the evolutionary tree which consists of branching. It is a…

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.