Question 7. One difficulty in estimating species richness is that many species have yet to be described. Suppose that the number of undiscovered species varies among taxa and that old clades tend to have more undiscovered species. In which direction would the observed relationship between species diversity and clade age be biased?

Q: Clade A began diversifying 20 million years ago. There are 33 living species in Clade A and 6…

A:

Q: Speciation that rapidly occurs after major environmental changes, opening 1 point new niches to…

A: The genetic drift can occur by founder's effect, bottleneck effect and gene flow. The migrations,…

Q: Consider a species that occupies a large, but fixed, number of islands. The distribution of the…

A: Island biogeography has been a topic of critical interest to scholars and geographers since the hour…

Q: How many species of giraffes would be predicted under the phylogenetic species concept, biological…

A: Species diversity is a measure of biological variety seen in a certain ecological community,…

Q: QUESTION 5 Which of the following is (are) problematic when the goal is to construct phylogenies…

A: Polyphyletic taxa include groups of organisms that share a common ancestor but also include some…

Q: Why do habitat preferences of species typically cause alpha diversity to be lower than gamma…

A: gamma diversity (γ-diversity) is the total species diversity in a landscape. It is suggested that…

Q: What conditions make it likely that a small group of closely related species will increase to a…

A: Speciation is the process by which new species are formed.

Q: Question 2: The difference between paraphyletic and polyphlectic groups is: A. Paraphyletic…

A: Introduction The study of the evolutionary history and the relationships among or within the groups…

Q: How does the fossil evidence support the model of punctuated equilibrium? Mammals in the Triassic…

A: Evolution is process which cause population to change . It takes place over many generations . On…

Q: Let's say a 10 nucleotide DNA sequence differs by 5 nucleotides between 2 species  and fossil data…

A: The substitution rate equation is a formula used to calculate the rate of substitution per site per…

Q: In island radiations we often see the following pattern: similar forms found in different species…

A: When a species live in an island there are large number of factors which affect its life.

Q: map and the DNA sequences to 4. The microsatellite data (Data Set 2) uses multiple genes to create…

A: DNA Sequencing -- DNA Sequencing means determination of order of chemical building blocks i.e.…

Q: QUESTION 5 I do an indepth study of two populations of cobras. During this study I crossbreed…

A: Introduction: Species-A species is a group of living organisms with genetically similar features and…

Q: Question 24 Which term describes large-scale evolutionary changes including the formation of new…

A: Evolution incorporates changes of limitlessly various scales — from something as immaterial as an…

Q: Make or create one question about Speciation and ecology (Nature of species, reproductiva isolation,…

A: When a group within a species separates from other members of its species, it develops its own…

Q: 13. occurs when members of a population that initially cupy the same habitat within the same range…

A: The process of evolution by which new, distinct species are formed is known as speciation. There are…

Q: Question: What is the difference between morphological and biological species concepts

A: Species are groups of organisms with similar characteristics, where they are capable of…

Q: Do you think generalist or specialized species would be better able to adapt and avoid extinction if…

A: Adaptations are heritable traits that improve an organism's ability to survive and reproduce in a…

Q: choose between the tiven

A: Introduction An ecosystem is a geographical area in which plants, animals, and other species, as…

Q: briefly explain why there is species variation?

A: Variation is the change in any amount, level, or condition. Genetic variation occurs in the genetic…

Q: Why is the morphospecies concept problematic for scientists? All of the above This concept allows…

A: There are different concepts which help to distinguish between individuals of different species.

Q: a- Species who are in the same clade are considered to have divergent evolution. b-An example of…

A: The term "theory of evolution by natural selection" was first coined by Charles Darwin and Alfred…

Q: Why might some scientists use the morphological species concept or the ecological species concept…

A: Scientists often use the Morphological Species Concept or Ecological Species Concept instead of the…

Q: 8. Parapatric speciation involves the origin of new species over the former range of the ancestral…

A: Taxonomy is a branch of science in which we study classification of living and extinxt organisms.…

Q: Do you think all of the 500 species in Lake Victoria arose through sympatric speciation? Why or why…

A: Three kinds of speciation depend on geographical domains. It is studied under the domain of…

Q: Based on the current species discovery rates, scientists estimate that: Most species have already…

A: We see a wide range of living things when we look around. such as houseplants, insects, birds, pets,…

Q: With your own terms -Define Haldane’s rule -Define allopatric speciation - Define sympatric…

A: 1 . Haldane's rule is an observation about the early stage of speciation 2. mode of speciation 3.…

Q: (log) Number of species 12 10 8 2 0 0 400 800 1200 Age of clade (My) Figure 2. The relationship…

A: The number of species in a clade is directly controlled by the addition of species through…

Q: Species Species Cladogram Phylogenetic Tree Richness Evenness I. Cladogram vs Phylogenetic Tree…

A: Biology is a branch of science which deals with the study of living organisms and their interactions…

Q: Which statement is true regarding the tree below? E A в с D O A. Taxon C is equally related to B and…

A: Phylogenetic tree: A diagram that represents the evolutionary relationships among organisms. It is a…

Q: Species A was recently discovered and its DNA sequence was compared to the DNA of the four…

A: DNA sequencing is the way toward deciding the nucleic acid arrangement – the request for nucleotides…

Q: In island radiations we often see the following pattern: similar forms found in different species…

A: The Divergent theory means that when two same species evolve differently at different geographical…

Q: An advantage of the ecological or evolutionary species concept, which other definitions lack, is: A.…

A: Ecological species concept :- In this concept a particular set of organisms defined for a specific…

Q: Why do you think variation of species is important in maintaining the natural biodiversity of…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: 18. (07.07 HC) Due to its location, Hawaii does not have very many land birds. The Hawaiian…

A:

Q: A species that has a high rate of long-distance dispersal is more likely to colonize new habitat.…

A: Introduction: A group of closely related organisms or individuals that are capable of interbreeding,…

Q: What does the biological species concept use as the primary criterion for determining the boundaries…

A: Species are a group of living organisms consisting of similar individuals that are capable of…

Q: What would the results be in each generation if a few fruit flies from the sweet potato population…

A: Drosophila melanogaster is the common fruit fly. However, there are 1500 species in the Drosophila…

Q: Question: Species C, D, and F are species that live in the desert (desert-adapted mushrooms). Do you…

A: Introduction :- A central aspect of phylogenetic inference is parsimony, which states that the…

Q: Why do we need several ways to measure species diversity

A: The word species diversity is self-explanatory inferring the variety of species in an ecosystem.…

Q: In the speciation model known as "punctuated equilibrium": a. Most new species of the "tree of life"…

A: All organisms on the earth are changing with time. It can be said that the organisms are evolving.…

Q: What evidence supports the existence of evolutionary lineages and their role in shaping…

A: Evolutionary lineages, also known as phylogenetic lineages, refer to the sequential…

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.