The pangolin or scaly anteater’s body is covered with scales. How come it is classified as a mammal? Explain. Cite at least three (3) references
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The pangolin or scaly anteater’s body is covered with scales. How come it is classified as a mammal? Explain. Cite at least three (3) references.
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- The pangolin or scaly anteater is a mammal and yet, its body is covered with scales. Explain. Cite at least three (3) references.Why are higher forms of animals bilaterally symmetrical?Explain. Cite at least 3 references.To what order does this animal belong (both animals belong to the same order)? This animal DOES NOT possess scales.
- Cite at least three (3) scientific reasons why pangolin or scaly anteater is a mammal despite its body covered with scales.The tree shows one lineage of ornithischian dinosaurs and many lineages of theropoddinosaurs. Some important traits are mapped on the tree including the aspects of feathers, digits of thehands and a few behaviors. a. What phylogenetic function do the Ornithischian dinosaurs play in this tree?b. What trait is shared by all theropod dinosaurs?c. Only two lineages are thought to be capable of flight. What trait may have helped their wings to bestrong enough?d. What seems to happen to the bones of the hand across this tree of dinosaurs?e. What other bone characteristics might be important to ultimately enabling flight?Can you answer all the parts to this question regarding the diagram Hemichordates are a sister group to the chordates. This group contains organisms called acorn worms. They don’t have all of the chordate characteristics - just some. Question Part a: What about the name hemichordate might give you a hint about their chordate characteristics? Part b: What characteristics do all chordates share based on this cladogram? Part c: Which ones are synapomorphies of the chordates and which ones are symplesiomorphies based on this cladogram?
- According to a cladistically-based classification system, tarsiers are: A. Prosimians, partly because of their nocturnal habits and small body size B. Prosimians, partly because of the presence of a tapetum lucidum and a rhinarium C. Strepsirrhines, partly because of the presence of rhinarium and vomeronasal organ D. Haplorhines, partly because of their partial post-orbital closure and fused frontal bonesMammals belong to a group of amniotes known as synapsids. Three major lineages of mammals had emerged by the early Cretaceous period. In a tabulated form, compare these three lineages to illustrate their diversity in terms of: a. Embryonic development b. How the young are fed c. Period of gestationWhat do fossils suggest about Australopithecine diet and how it may have varied between the two groups? Explain your answer and be explicit as to what traits support your answer.
- In a sentence, briefly describe a feature of australopithecine leg or foot bone structure (such as Lucy) cited as evidence that they were bipedal.Which of the following is true about the phylogeny of birds and reptiles. Question 35 options: a) Birds are more closely related to amphibians then they are to reptiles. b) Birds are a type of reptile, but are not related to dinosaurs. c) Birds and reptiles are the least related vertebrates. d) Birds are a type of reptile and are descended from a group of dinosaurs.Pharyngeal slits are which of the following? Question 24 options: a) Openings in the pharynx. In aquatic chordates they allow for exit of water that enters the mouth. b) Elongations of the posterior portion of the body. Use for locomotion in fish, or balance in some terrestrial vertebrates. c) Flexible, rod-shaped structures that grows from mesoderm. Gives support to an animal in embryonic development of chordates or for entire life depending on the species. d) Tissues that produces thyroid type hormones. e) Hollow tubes that develops from ectoderm. Develops into the central nervous system.