Q: Explain how radiometric dating is used to estimatethe age of a fossil.
A: Forensic science, otherwise called criminalistics, is the use of science to criminal and civil laws,…
Q: Explain how the fossil cetacean ancestors cahnged over time from oldest to most recent.
A: Cetaceans (whales, dolphins, and porpoises) are a group of mammals that first appeared in the Eocene…
Q: Discuss the evidence-based reasons why it is being highly proposed that we are under the…
A: A branch of science which deals with the features of an area involving physical structures,…
Q: The study of biological diversity based on evolutionary relationships isa. paleontology. b.…
A: Phylogenetic relationships or evolutionary characteristics play a major role in classification of…
Q: Describe three components of an Adaptive Radiation.
A: Adaptive radiation is the process by which individuals in a rapidly diversifying group diverge from…
Q: Match items in the column that mostly related to each other. i. homology ii. biogeography iii.…
A: Homology can be defined; as a similarilty in the structures or organ present between different…
Q: Long periods of no change in the fossil record followed by periods of rapid change is called O…
A: Evolution: evolution is defined as a process by which organisms adapt according to their environment…
Q: Explain the significance of the geologic timescale in the context of evolution
A: Geological time scale is composed of periods, Eras , and epochs. It is studied under the domain of…
Q: Discuss how the fossil record, biogeography, andanatomical and biochemical evidence all support…
A: Evolution is described as the changes in a population that took place over a long period. The…
Q: Outline the major events and changes in species diversity duringthe Paleozoic, Mesozoic, and…
A: The genes are hereditary units of an organism that is transferred from one generation to the next.…
Q: outline major stages in life evolution, and describe how the landsurface changed as life evolved.
A: The period from 4600 mya to 2500 mya is called Archean eon.
Q: Biologists studying living primates in recent years, such as Geladas and Baboons, have noticed that…
A: *chronospecies a species derived from a development pattern that is involved with an continuous and…
Q: Define each in two short sentences Allopatric speciation Sympatric speciation Adaptive radiation…
A: Evolutionary biology is a branch of biology which explores the mechanisms that led to the variety of…
Q: Distinguish between convergent and divergent evolution giving one example of each.
A: Evolution is a change in the "genetic composition" of a population over multiple generations. It is…
Q: Describe six types of fossils and how they form. What presentenvironmental conditions might preserve…
A: Fossils: Fossils are considered to be the parts or the remains of the organisms that are preserved…
Q: Contrast the gradualistic model of evolution with the punctuated equilibrium model of evolution.
A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…
Q: evolutionary interactions
A: Definition: The ecosystem is defined as the system formed by the interaction of all living…
Q: Describe how the processes of within population change and speciation lead to diversification of…
A: There are three main processes of change of population- birth rate, death rate and migration.The…
Q: Describe the theories of gradualism and punctuated equilibrium. How can the fossil record support…
A: Gradualism is the theory or assumption where the changes come about gradually or that variation is…
Q: Discuss Triassic-Jurassic Extinction. Make sure to discuss the possible causes of the extinction,…
A: Dinosaurs were among the biggest and most fascinating animals to ever roam the Earth's surface.…
Q: The Andes are the longest continental mountain range in the planet and influence the biogeography of…
A: Allopatric speciation is the divergence of physically separate populations of a species, occupying…
Q: Discuss the pace of evolution by describing punctuated equilibriumand phyletic gradualism.
A: Introduction:- Different tempos of speciation are not described by punctuated equilibrium or…
Q: All of the following data types can be used as evidence of shared ancestry except similarities…
A: Many scientists have discovered the existence of a common ancestor using clear evidence from their…
Q: Summarize the evidence for evolution obtained from the fossil record.
A: Evolution is the change that takes place in a species over several generations or over a span of…
Q: Rank the characteristics, from one to ten, in terms of there importance in the evolution of…
A: Ranks of the characteristics according to their importance in the evolution of organisms are- Rank 1…
Q: ompare and contrast between the following a) allopatric speciation and sympatric speciation.…
A: There are various similarities and differences between the above-mentioned forms of speciation. This…
Q: The fossil record shows that over time:
A: Fossils are the remaining parts or traces of old life that have been preserved by natural cycles,…
Q: Describe how pre-zygotic, post-mating and post-zygotic isolation mechanism lead to variation and…
A: The phenomenon of evolution of a population to form distinct species is called speciation. A group…
Q: In a cladogram, each node represents a(n)______ . a. single lineage c. common ancestor b. extinction…
A: Cladograms are diagrams which relate the relationships between different groups of taxa called…
Q: Describe how scientists use fossil records as evidence for Evolution
A: Evolution is defined as the change in the genetic composition of a population during successive…
Q: Given the sources of evidence, explain precisely how it supports evolution. B. Fossil
A: Evolution can be described as gradual development in the living organisms. Evolution is the process…
Q: Explain how convergent evolution can contribute to adaptive radiation
A: In convergent evolution, the organisms doesn't have a common ancestor but they end up having a…
Q: (A) (B) (C) Parent Parent species species Parent Parent Parent species species species Divergent…
A: Biological Evolution follows various patterns and is affected by several factors like predation and…
Q: Different lines of evidence may be used when determining whether two species are related. Drag the…
A: The change in the heritable characteristics of the species across many generations is called…
Q: Distinguish between divergent and convergent evolution.
A: Convergent evolution and divergent evolution provide evidence for evolution that has taken place…
Q: Describe how natural selection and environmental adaptation led to the evolution of particular life…
A: “Darwin’s theory” of evolution states that the changes in the physical and behavioral traits of an…
Q: Briefly explain how an incomplete fossil record can lead to biased perspectives of evolutionary…
A:
Q: Given the sources of evidence, explain precisely how it supports evolution. C. Homologous Structure
A: Homologous structures are structures that have the same evolutionary origin. They may or may not…
Q: Distinguish between microevolution and macroevolution, and describe some evolutionary processes…
A: Evolution results in modification, modification in the kind and behavior of organisms between…
Q: Define biogeography and describe how the distribution of organisms supports evolution.
A: Evolution is the process of the accumulation of variations.
Q: Describe the parts of a phylogeny, and interpret it (e.g., identify a given taxon's sister taxon,…
A: Parts of a phylogenetic tree includes:The 'tips' of the tree branches represent the taxa in the…
Q: Proof of Evolution (select the one that fits the best): O Fossil record, Biochemestry, vestigial…
A: * evolution is change in the characteristics of an individuals over many generations on process of…
Q: What are the main reasons for gaps in the fossil record
A:
Explain how the broad evolutionary changes seen in the fossil record
are the cumulative result of
Step by step
Solved in 2 steps
- Describe the theories of gradualism and punctuated equilibrium. How can the fossil record support both?What is meant by the term “intermediate fossil” when referring to the fossil record?It is known that it takes very long periods of time for new species to develop, and yet the fossil record for many organisms is characterized by long periods of Stasis (no change) followed by short bursts of intense Speciation (the disappearance of one species followed by the appearance of a new species). Thus in the fossil record, organisms seem to stay the same for long periods of time followed by a “sudden” change in the organisms (sudden with respect to evolution and geology). In other words, it appears that new species evolve suddenly as opposed to over long periods of time. The Theory of Punctuated Equilibrium helps to explain these seemingly contradictory occurrences in the fossil record. Discuss how Punctuated Equilibrium works (think about small offshoot populations that break off from the main population) and how it can explain the fossil record evidence. (Be sure to include information about why fossils of the offshoot population would be rare.)
- Briefly explain how an incomplete fossil record can lead to biased perspectives of evolutionary pathways. Provide specific examples.Regarding data from the fossil record, morphological change in the same direction over time (e.g., body size increase) in all lineages of a clade indicates a/an: O no evolutionary trend average evolutionary trend O active evolutionary trend O passive evolutionary trend O negative evolutionary trendSummarize the evidence for evolution obtained from the fossil record.
- According to the punctuated equilibrium model, (a) populations slowly diverge from one another (b) the evolution of species occurs in spurts interspersed with long periods of stasis (c) evolutionary novelties originate from preadaptations (d) reproductive isolating mechanisms restrict gene flow between species (e) the fossil record, being incomplete, does not accurately reflect evolution as it actually occurredShows how modern organisms descended from common ancestors Structures that do not serve a function and are similar to those found in earlier organisms 1. Transitional Species Compares the age of fossils to each other based on the layers of rock they are found in 2. Vestigial structure 3. Fossil Record 4. Relative Dating Evidence of gradual change between a new species and its ancestor 5. Radiometric Dating Structures that related species have inherited from a common ancestor 6. Homologous Structures uses radioactive elements to narrow down the age of a fossil to a specific periodYou are examining the fossil record and notice a dramatic decrease in species diversity that seems to span across multiple groups of organisms within a very short period of time. This could most likely indicate: The beginning of a new geologic period A mass extinction event A major evolutionary breakthrough An artifact of poor fossil preservation adaptive radiation