Q: Discuss the importance of the replacement model in the evolution of the genus Homo.
A: The replacement model is given by a theory which explains the common origin of human being, and also…
Q: To explain: The relation of the adaptations and the evolutionary change.
A: The term "evolution" was coined by a geneticist. A change in the allele frequencies of a gene pool…
Q: hat do scientists think the primitive Earth w
A: Researchers believe that early earth's atmosphere consisted of water vapor , carbon dioxide , carbon…
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: Imagine if centaurs were real. Make a Cladogram (Evolutionary Origin) showing its closest relatives…
A: The cladogram is a family tree that shows the evolutionary relationship between different species.…
Q: Which statement is true about fossilization? (A) (B) (C) (D) Only animals with backbones…
A: Fossilization is the process of preserving plant and animal remains over a period of time by means…
Q: When and where did Homo sapiens originate? Evaluate which hypothesis better supports the current…
A: Evolution of modern humans i.e. Homo sapiens is explained by various hypothesis such as multi…
Q: How is fossil age measured
A: Relative dating and absolute dating are the two basic approaches for establishing the age of a…
Q: Explain why the concept of exaptation does not imply that a structure evolves in anticipation of…
A: Exaptation is processes of evolution in which a character is developed for a specific function but…
Q: From which biogeographic province do fossils of the closest ancestors of marsupials appear to…
A: Marsupials, however, do things a little bit differently. Young develop inside their mother in a…
Q: To describe: The information that has been revealed by present methods about the successors of…
A: Dinosaurs thrived for more than 100 million years, and there is no certainty behind dinosaur…
Q: What is one way we can determine the age of fossils Adaptive Dating O Structural Dating Geometric…
A: Evolution is the process of slow and gradual change over a period of time. There are many pieces of…
Q: Discus evolution of Animal kingdom
A: The change of characteristics and evolving the new characteristics according to change in the…
Q: True or False: The presence of vestigial structures in humans (such as tailbones) provides support…
A: Some organisms possess structures with no apparent function which appear to be residual parts from a…
Q: Question 14 Which of the following is not one of the means for fossilization? Ice Tar None of the…
A: Fossilization is a process of becoming a fossil. In fossilization, only the hard parts (like bones,…
Q: The fossil nicknamed Lucy was a(n)a. early Homo.b. australopith.c. ardipithecine.d. modern human.
A: Answer: Introduction: Fossils are produced in many diverse ways, but that are widely produced at the…
Q: Which group of organisms came before marsupials
A: Marsupials belongs to the mammalia class and metatheria classification and most commonly found in…
Q: Ardipithecus ramidus lacked the specialized teeth seen in living apes (such as exaggerated canines).…
A: Any animal or plant retained in the Earth's geological record that is representative of a specific…
Q: Give two lines of evidence supporting the asteroid impact hypothesis for the Cretaceous extinctions.
A: The evidence is given below.
Q: What is the study of fossils called? Mention any three points how the fossils throw light on past…
A: Fossils are the naturally preserved remains or traces of animals or plants that lived in the…
Q: Humans and chimpanzees are sister species. Explain what thisstatement means.
A: The genetic difference between the two is very less. Humans and chimpanzees are closely related.…
Q: Which of the following organisms would be most likely to fossilize? a rare flower O an abundant…
A: Fossils are the remain or traces of the dead plants and animals that have been preserved by the…
Q: The appearance of the first hominoids dates to the ___________ period. Triassic Jurassic Cretaceous…
A: A hominid refers to a group of human and human-like apes which belongs to the Hominidae family. The…
Q: Describe a scientific hypothesis to explain the mass extinction of dinosaurs and many other…
A: Dinosaurs are the groups comming under reptiles. They have an terrestrial life forms. They lived…
Q: The stone tool industry from the Lower and Middle Pleistocene modified from the first tool industry…
A: Answer is option 3.
Q: Which of the following is the best way to measure the age of the Earth? O Examine rocks collected in…
A: Test the rate of decay of specific elements in rock samples
Q: Describe an example from the fossil record that showshow life has changed over time.
A: Evolution is the process of heritable change in the characteristics of an organism. Such changes…
Q: Use the scenario to answer the question. A fossil indicates that whales might have started out as…
A: There are many signs in a whale's anatomy that their ancestors lived on shore. Hippos and whales…
Q: The most accurate phylogenies use… a. Analogous characteristics b. Evolutionary reversals…
A: The history of evolutionary development of a species or a group of organisms is known as phylogeny.…
Q: Cite and explain the factors that led to an enormous bloom of animal diversity in the Paleozoic era.
A: Paleozoic era began somewhere around 541 million years ago and ended around 252 million years. The…
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: Equater Permian - 225 million years ago Triassic - 200 million years ago Jurassic - 135 million…
A: Introduction Twenty million years ago the Indian and Asian continental plates clashed and pushed up…
Q: Q1: Variable descriptions of a character is called a _____________. A. Homologous character B.…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Which is true concerning how fossils are used as evidence? O A. Fossils cannot be compared to one…
A: Evolution is a process of gradual changes in the genetic composition of an organism based on the…
Q: Transitional Fossils Eusthenopteron (fish) Tiktaalik Acanthostega
A: Answer of question 8 and 9 are given :-
Q: Imagine you are the head of a newly formed NASA Interplanetary Paleontology Department! Based on…
A: Fossils are the impressions of the preserved impressions of organisms that remained on this planet…
Q: The late miocebe african enviirment where the earliest hominids evolved was characterized by
A: The Miocene Period, which lasted from approximately 23 to 5.3 million years ago, would be the first…
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: Fossil A found closer to the surface compared to Fossil B. Which of the following conclusions can be…
A: Fossils are the remains or impressions of a prehistoric plant or animals embedded in a rock and…
Q: What are the challenges of estimating the ages of old fossils?Explain how these challenges may be…
A: The fossils are precious data that can be reconstructed in the history of many living organisms.…
Q: Consider three important fossil SITES in Canada. Name them. Put them in order from the oldest to…
A: Fossil is defined as a preserved remains or imprint or tissues of the prehistoric organism. They are…
Q: During what era did pangs begin to break up
A: During what era did pangs begin to break up? Answer. B. Triassic
Q: Fossils show that dinosaurs originated between 200 and 250 million years ago. Would you expect the…
A: Earth is divided into land part and ocean part. A huge large chunk of land is present later around…
Q: Describe how DNA evidemce might be used to confirm scientist's conclusion about any relationship…
A: Forelimb is a homologous organ present in all animals but has evolved in course of time.
Q: Scientists are examining the possible role of a large asteroid in the cretaceous mass extinction…
A: Introduction : Small, airless rocky bodies revolving around the sun between the orbits of Mars and…
Q: ldest in a given strata and why?
A: Fossil is any preserved remains, impression, or trace of any once-living thing from a past…
Q: Explain why mammal jawbones may have shifted to being a single solid bone from multiple bones.…
A: The evolution of the jaw is one of the most significant evolution in vertebrate history.
Briefly explain why Pangenesis theory is incorrect
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- Fossils show that dinosaurs originated between 200 and 250 million years ago. Would you expect the geographic distribution of early dinosaur fossils to be on multiple continents or on a single continent? Explain. Hint: refer to continental drift in your explanation.Fossil A found closer to the surface compared to Fossil B. Which of the following conclusions can be made based on this statement?Describe a scientific hypothesis to explain the mass extinction of dinosaurs and many other organisms at the end of the Cretaceous Period.
- What kind of fossils were formed out of dinosaur remains and activities? Why do you say so? (Give three)FROM THE GIVEN CLADOGRAM ANSWER THE FOLLLOWING: a.True or False: Crocodiles, dinosaurs, and birds form a clade. Explain.b. Which taxon are dinosaurs more closely related to, crocodiles or birds? Explain.Explain why it is difficult to use carbon-14 dating on 100-million-year-old dinosaur fossils
- The genus Homo dates back to about____. a. 3.9 million years ago b. 1.8 million years ago c. 250,000 years ago d. 2.8 million years agoExplain why mammal jawbones may have shifted to being a single solid bone from multiple bones. Explain why the huge increase in diversity is usually attributed to the Cambrian Explosion even though diversity may have actually increased prior to the Cambrian.Some genetic studies suggest that the most recent common ancestor of Homo sapiens that lived outside of Africa spread from Africa about 50,000years ago. Compare this date to the dates of the fossil record. Can both the genetic results and the dates ascribe to the fossils be correct? Justify. PLEASE INDICATE A REFERENCE
- What are the challenges of estimating the ages of old fossils?Explain how these challenges may be overcome in somecircumstances.According to the fossil record, which of these species is the earliest of the Homo genus? a. H. sapiens d. H. heidelbergensis b. H. erectus e. H. ergaster c. H. habilisWhat do scientists think the primitive Earth was like? Cite at most four pieces of evidence.