How do we know how old a fossil is? A) We compare it to current species and see how much has changed B) We see how much soil is on top of it C) We use radiometric dating
Q: Why is it so important to learn about the Piltdown Hoax? Do you think it demonstrates that…
A: Piltdown Hoax was created when Dawson and Smith Woodward faked the discovery of the fossilized…
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: what can we learn by studying fossils?
A: Fossils are the preserved remains or traces of living organisms that lived in past. Fossils are…
Q: How did the researchers use the DNA of living sponges to make conclusions about events occurring…
A: Answer- Every organism in a particular species have 99 percent same DNA sequence. Even among…
Q: Lystrosaurus provided which type of evidence supporting continental drift? land features fossil…
A: As the ability to sequence the nucleotides that make up DNA has increased, the use of genes to…
Q: How does biogeography explain the theory of evolution?
A: Introduction :- The study of the geographic distribution of plants, animals, and other forms of life…
Q: what is a mold? A. the imprints from an organism can be a shell or the skin of an animal B. Molds…
A: Fossils are the preserved remains of the organisms that die. The palentologists deal with two basic…
Q: What is Allopatric speciation? A) When a population is separated from the main group by a barrier…
A: Allopatric speciation : Allopatric speciation is the process by which a physical barrier separates…
Q: Which condition is the basis for a species to be reproductively isolated from other members? a. It…
A: Species which are reproductively isolated does not exchange genetic information with different…
Q: Using the DNA alignment provided, which of the following phylogenies is the most likely accurate…
A: Phylogeny 2nd is right DEBCA for the given DNA nucleotides.
Q: -If 30 percent of the carbon-14 atoms remain in a sample, how long ago did the organism die? -Is…
A: The unstable isotope of the carbon is Carbon 14 (C-14). The half-life of a C-14 is 5730 years old.…
Q: What is convergent evolution? Give an example.
A: Evolution is the heritable characteristic change over successive generations. The characteristics…
Q: According to the film, First Steps, the first stone tools were associated with which species? A:…
A: Homo habilis is an extinct hominid of the genus Homo that is known from sub-Saharan fossil remains…
Q: How do we know the age of a fossil?
A: The change in the heritable characteristics of the species across many generations is called…
Q: Do all organisms fossilize after death?
A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…
Q: For about how many years of geological time have the dinosours existed on earth?? Did dinosours…
A: Geological time scale divided the prehistoric earth into four eras based on the the environmental…
Q: Through which of the following sequences did chemical evolution MOST likely take place? Protobionts,…
A: According to Oparin, coacervate serves as a bridge between loose complex organic molecules and…
Q: What is the “sixth mass extinction event”?
A: Mass extinction refers to a substantial increase in the degree of extinction or when the Earth loses…
Q: Most fossils ___. have been formed by exposure to air are found in sedimentary layers of rock…
A: A fossil is anything of past geological age which was preserved. A fossil could be anything like…
Q: Based on the fossil layers shown below, what can you infer about the past environment at this…
A: Fossils are the preserved impressions or remains of organisms that existed in the world a long, long…
Q: Scientist have determined that the early Earth had no free oxygen anywhere. Briefly explain what…
A: Scientists suggest that the early atmosphere of the earth was very hot and had no ozone or free…
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: 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: explain how genetic information along with an understanding of the process of descent with…
A: Phylogeny is the branch of evolutionary biology which deals with the construction of phylogenetic…
Q: What is the difference between an ancestral character and a shared derived character?
A: Systematics is used to construct a cladogram, which is an evolutionary tree, which depicts the…
Q: What is the difference between micro- and macroevolution? a. Microevolution describes the evolution…
A: MICRO EVLOUTION The change in allele frequency within the population. The mechanism involved in…
Q: How long did it take, according to the short film, Human Origins: Expanding World of Homo Erectus,…
A: The answer of this question is option 2 that is 1.5 million years. The Homo erectus is lasting…
Q: What is Sympatric speciation? A) When a population is separated from the main group by a barrier…
A:
Q: According to the data, which two species in Table 3 are most closely related? Why do we think these…
A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…
Q: How do we know the age of the last common ancestor shared by two species?
A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…
Q: Why is it important for organisms to adjust the timing of their life history to seasonal changes in…
A: Seasonality is a fundamentally significant part of natural fluctuation, and firmly shapes all parts…
Q: What is an Analogy? A) When an anatomic feature is shared among organisms and their descendants B)…
A: Analogy example: Wings of birds, insects and bats.
Q: What is a Homology? A) When an anatomic feature is shared among organisms and their descendants B)…
A: explanation-similarity of the structure, physiology or development of different species of organisms…
Q: Using the DNA alignment provided, which of the following phylogenies is the most likely accurate…
A: The right answer is phylogeny 2nd, DEBCA according to the DNA nucleotides given.
Q: If you were to find 60-million-year-old fossils of a species of land plants on the east coast of the…
A: Fossils are the substances that are used to give us information about how animals and plants were…
Q: Why did Shubin and his colleagues choose to look in the Canadian Arctic for transitional fossils?
A: As explained by Neil Shubin answer why he chose the Canadian Arctic for transitional fossils takes…
Q: What is fossil?
A: Evolution is defined as the change in the characteristic traits of the organism in population over a…
Q: Why don't shared ancestral characters provide evidence for relationships between organisms within a…
A: Species are organized into groups based on shared derived traits (traits different from those of the…
Q: Assuming the Denisovans, Neanderthals, and humans were able to interbreed, what does this tell you…
A: Denisovans are group of extinct humans. They first identified based upon DNA sequences from…
Q: If American cacti and African spurges were closely related, could they be used to show that…
A: Introduction Evolution is the process of a species' features changing over numerous generations…
Q: In which type of classification system are names assigned only to groups that include a common…
A: Scientists must assign names to each organism in order to investigate the enormous diversity of life…
Q: Why are the fossils and artifacts important in the study of biological and cultural evolution?
A: Fossils are valuable sources of knowledge about life on Earth in the past. Scientists may often…
Q: What do you mean by paleontological evidence? Mention their utilities and significance.
A: The concept of evolution is supported by evidence.
Q: What does the trunk of the classic phylogenetic tree represent? a. single common ancestor b. pool of…
A: Phylogeny is the developmental history of gatherings of organic entities, like species or clades.…
Q: please explain A drawback of the time hypothesis to explain the variation in species richness is…
A: The 'time hypothesis' proposes that species richness is linked to the ages of clades. Species…
How do we know how old a fossil is?
- A) We compare it to current species and see how much has changed
- B) We see how much soil is on top of it
- C) We use radiometric dating
Step by step
Solved in 2 steps
- Why is it so important to learn about the Piltdown Hoax? Do you think it demonstrates that scientists may lose their objectivity when they want data to fulfill their expectations and desires or does it demonstrate the self-corrective nature of science? Why were people so willing to believethat one of the oldest specimens was found in south England?Why will the fossil record always be incomplete?Why is it important for organisms to adjust the timing of their life history to seasonal changes in the environment?
- What is the oldest fossils?An organism dies,and its body leaves an impression in mud. Over time, the mud hardens into rock, and the impression becomes a fossil. Which kind of fossil was formed? A) cast B) mold C) original material D) trace fossilExplain why it is difficult to use carbon-14 dating on 100-million-year-old dinosaur fossils
- If American cacti and African spurges were closely related, could they be used to show that biogeography supports evolution?How do plate tenctonics help scientist describe fossils??Even though paleontologists and anthropologists are continually finding new fossils, there is still a lack of fossils overall. Explain.