The bones that make up the forelimbs of monke cats, whales, and birds are similar. of the following statements best supports Whi evolutionary relationshin of these animals?
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Evolution can be studied by various evidences like homologous and analogous organs.
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- . 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.Whale skeletons contain nonfunctional pelvic bonesa. as a result of convergent evolution.b. due to catastrophism.c. because whales evolved from ancestors that had hind legs.d. because the bones might be needed for a future adaptation.According to "Homo naledi – New Questions on Human Evolution ", why was it significant that the bones were found to be articulated (their bones hadn’t separated from each other)? A.The individuals arrived in the cave either alive or shortly after the died. B.The individuals had decomposed outside of the cave, and other Homo naledi individuals put their skeletons together inside the cave. C.The bodies must have been placed in bags or coffins to keep the skeleton together as the body degraded. D.None of these are correct
- .The skeletons of early fossil Homo and archaic Homo sapiens are marked by very ____ skeletons; this pattern demonstrates a dramatic ____ with the origin of modern humans. a. well designed; increase b. robustly built; decrease c. gracile; increase d. sturdy; increaseWith regard to biological evolution, which of the following statements is incorrect? Explain why.A. During its lifetime, an animal evolves to become better adaptedto its environment.B. The process of biological evolution has produced species thatare better adapted to their environments.C. When an animal is better adapted to its environment, the process of natural selection makes it more likely that the animalwill reproduce.All birds living today are descended from a group of dinosaurs called theropods. Theropods first appeared in the fossil record around 200 million years ago. However, fos- sils of taxa similar to modern birds can be found in the fossil record from around 66 million years ago. The table below provides information about certain traits in theropods and modern birds. An X indicates the presence of a trait. Theropods A Trait B с Bipedal D Hollow Bones Feathers Long Boney Tail Jaws with Sharp Teeth Fused Clavicle X Reversed First Toe A table that shows the comparison of traits in theropods and modern birds. X X X Modern Birds X X Each of the answer choices below describes a specific fossil. Which fossil provides the strongest evidence for the discovery of a transitional species that existed in the period between theropods and modern birds? X X X The fossil of a bipedal organism with hollow bones was found in a 100-million-year-old rock layer. The fossil of an organism with a reversed first…
- The wing of the bat and the fore-limb of the dog are said to be homologous structures. This indicates that: O The limb bones of each are anatomically identical O They have the same function O They have a different ancestry but a common function Bats evolved from a lineage of dogs O They are structures which are similar due to common ancestryThe size of the head of the femur reflects the magnitude of force normally applied across the joint during locomotion as well as the contribution of body mass. Using these rationales, early hominin femoral heads are absolutely ____ in diameter than Homo sapiens, and their body weight is estimated at approximately ____. a. larger, 60kg-150kg b. smaller; 60kg-150kg c. larger; 25-50kg d. smaller; 25-50kgYou are reading a scientific paper regarding the relationships of the anatomical and behavioral characteristics of chimpanzees and their implications for early hominid evolution. With the emphasis on anatomical and behavioral characteristics, this implies that the researchers are relying on A. Traditional classifications of chimpanzees and humans B. Nonevolutionary classifications of chimpanzees and humans C. An incorrect classification of human ancestors D. Cladistic classifications of chimpanzees and humans
- Despite the differences in neck length, mice, humans, and giraffes all have seven cervical vertebrae. This is an illustration of A. missing links. B. homologous structures. C. vestigial structures. D. analogous structures.According to "Homo erectus – The First Humans”, what are the different hypotheses that might explain the stature of Homo floresiensis? A.Island Dwarfism B.They might be descended from Homo habilis or an Australopithecine C.All the individuals had a genetic mutation D.Both A and BWhich statement about the relationship between phenotypic and genetic attributes is correct? O a Usually phenotypically similar organisms are not genetically similar. O b Organisms with very similar morphology also have very similar genes. Genetically similar organisms can appear profoundly different morphologically. O d Analogous qualities among two species are similar due to shared ancestry.