The possible existence of E.H.1 (extinct hominin 1) was a concept introduced in class lectuer. This species is significant because O t may represent the first species identified through mapping the genome of modern and archaic human species rather than fossil evidence It may represent the very first human (Homo) species O It may represent evidence that humans evolved somewhere outside of Africa O It may represent the ancestors of Homo floresiensis
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- Knowledge of the genomes of ancient homininsmight help us better understand not only the evolutionaryhistory of hominins, but also the traits that differ between usand our relatives—the traits that make us human. Our understandingof the functions of different genes is growing rapidly,so detailed comparisons of our genes to those present in, say,Neanderthals and Denisovans are very revealing. What do youthink are the functions most likely to be related to the geneticdifferences between us and our hominin relatives?Taphonomy tells us ab0ut preservati0n biases in the fossil rec0rd. What kind of biases affect 0ur understanding 0f the large animals 0f the Triassic, Jurassic, and Cretaceous? (a short list with explanations or 2-3 short paragraphs) need help asap, thank you in advanceWhich species was probably the first of the genus Homo to migratefrom Africa?a. Homo erectusb. Homo habilisc. Denisovansd. Homo florensiensise. None of these are correct.
- 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 REFERENCEFull or partial limblessness has evolved many times invertebrates (snakes, lizards, manatees, whales). Do youexpect the mutations that occurred in the evolution oflimblessness to be in the coding or noncoding sequencesof toolkit genes? Why?Two individuals from the San tribe in Africa are more diverse from one another than two individuals from Europe and Asia. This is possibly because hunter-gatherers in Africa share DNA with a variety of other hominin species while only one Homo species populated other regions of the planet. is this statemnet true or false
- Recent reconstructions of evolutionary history are often dependenton assigning divergence in terms of changes in amino acid ornucleotide sequences. For example, a comparison of cytochromec shows 10 amino acid differences between humans and dogs,24 differences between humans and moths, and 38 differencesbetween humans and yeast. Such data provide no information asto the absolute times of divergence for humans, dogs, moths, andyeast. How might one calibrate the molecular clock to an absolutetime clock? What problems might one encounter in such acalibration?Dont USE AI. Please answer from your knowlage. Why do you think it was possible for several different hominin species to coexist at around 2.5 million years ago when we are the only living hominin species today? Do you think it is possible that one of the later robust Australopithecines could be the ancestor to our genus, Homo? Why or why not? 300 wordsThere is no concrete evidence of which early hominin was our direct ancestor, as fossils do not contain genetics. Overall, the Australopithecines are the "missing link" bridging our ape to human transition. Each species, and there are a few, includes a combination of traits considered more ape-like or more human-like. How does this affect society feelings/views/ideas about early human evolution and what the "missing link" should or should not be.
- . The upper forelimbs of humans and bats have fairly similarskeletal structures, whereas the corresponding bones inwhales have very different shapes and proportions. However,genetic data suggest that all three kinds of organisms divergedfrom a common ancestor at about the same time. Which ofthe following is the most likely explanation for these data?(A) Forelimb evolution was adaptive in people and bats, butnot in whales.(B) Natural selection in an aquatic environment resulted insignificant changes to whale forelimb anatomy.(C) Genes mutate faster in whales than in humans or bats.(D) Whales are not properly classified as mammals.Michael Bunce and his colleagues in England, Canada, and theUnited States extracted and sequenced mitochondrial DNA from fossilsof Haast’s eagle, a gigantic eagle that was driven to extinction 700 yearsago when humans first arrived in New Zealand (M. Bunce et al. 2005.PLOS Biology 3:44–46). Using mitochondrial DNA sequences fromliving eagle species and those from Haast’s-eagle fossils, they createdthe accompanying phylogenetic tree. On this phylogenetic tree, identify(a) all nodes; (b) one example of a branch; and (c) the outgroup.What is both the physical and cultural evidence that Homo sapiens nenaderthalensis is an ancestral hominin to Homo sapiens sapiens (modern humans)?