1. What was the most plausible function of feathers in theropod dinosaurs like deinonychus? 2. What made microraptor a unique feathered dinosaur? 3. What are the 2 theories ahout hou i"

Q: 1.Which class of the land-dwelling chordates retained more ancestral features than the others?…

A: Hello, Dear Students, Q1:  Class reptilia has retained more ancestral features among the land…

Q: 8. Which pair of animals are homologous in structure? *

A: Homologous structures are similar in terms of construction. However, they perform different…

Q: 5.)Why do organisms with close biochemical similarities show stronger evolutionary relationship?…

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Q: Fur seals and sea lions have similar anatomy. They probably have a common anceste What additional…

A: Phylogeny is the branch of biology that studies phylogenetic analysis. A phylogenetic analysis is…

Q: QUESTION 13 What is the most probable primitive condition for marsupial mammals (node D)? a. Claws…

A: Introduction   Marsupials are any members of the mammalian infraclass Marsupialia. Premature birth…

Q: 5. Using these fossils, fill in the following chart: Boisei Front tooth (incisors and canines)…

A: The mammal genus species, noted as Australopithecines, had features that were each human-like and…

Q: 1. How is the evolution of fish thought to have contributed to the evolution of cephalopods?

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Q: 1. Today's lungfishes in the Amazon rain forest do not have lobefins, but nevertheless are regarded…

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Q: Scientists have found one new fossil that is similar to Archaeopteryx. It is only the second fossil…

A: Archaeopteryx was discovered in southern Germany in 1861 and it is characterized by unusual but…

Q: 3. What could explain this distribution of Mesosaurus fossils?

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Q: 1 What is the special feature of mammals that a bat has that a bird does NOT have? mow ainslg er

A: Bats are mammals that are warm blooded with wings made of membrane covered with tiny/microscopic…

Q: 7. Primates have prehensile hands (and sometimes they have prehensile feet). What does this mean?…

A: Introduction :- A diverse group of mammals are called primates. The lemurs, galagos, and lorisids…

Q: Both cartilaginous and bony fishes have_ a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The name vertebrate comes from the Latin word vertebrae, which refers to the spine's bones. Animals…

Q: How are the non-human primates similar? How do they fit into the tree? Which examples do we have…

A: Evolution is the process by which an organism develops itself with characteristics that better fit…

Q: 3. Draw a simple sketch of a transitional fossil that might link feathered, tree-climbing reptiles…

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: 3. Which of the following chordates are believed to have been the most recent vertebrate group to…

A:

Q: 1. Where on the graptolite colony did the individual animals live? 2. How do graptolites differ from…

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Q: 1. Divide the animals into two groups depending on if they possess vertebrae. 2. Divide the…

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Q: Ray-finned fish Sharks Roderts & ratbts Crocodles Amphibiens Primates Birds Hair Eggs wth shel…

A: An outgroup in a phylogeny is the most distantly related organism.Here in this phylogeny the…

Q: The formation of the neural plate is induced by the ….? Group of answer choices a. notochord b.…

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Q: .With reference to the thorax only, how do insects differ from other organisms.

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Q: 71.The stratigraphic range of brachiopods is ordovician to recent T F

A: Brachiopods, also known as the phylum Brachiopod, are a group of animals that live Brachiopods are…

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Q: Compare modern humans and Neanderthals. What evidence suggests we are very closely related specie

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Q: Both cartilaginous and bony fishes have______ . a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The term vertebrate is derived from the word vertebrae, which refers to the bones that make up the…

Q: 5a. Define each of the 3 categories of mammals: Eutherians Marsupials Monotremes:

A: Mammals belong to the class Mammalia. They are the warm-blooded animals and rule the terrestrial…

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A: INTRODUCTION Homologous structure The homologous structures are similar in construction but are…

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A: Evolution is the process through which animals or organisms undergo changes in subsequent…

Q: Which statement about lungs and gas bladders is true? A) the first osteichthyans had lungs and these…

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Q: What is the DNA analysis and fossil records of the animal aye-aye

A: The scientific name of aye aye is daubentonia madagascariesis.  Aye aye have low population density.…

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Q: 1. What is notable about the fossil primate specimen known as Darwinias masillae? 2. What is notable…

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Q: 7 What are the four structures found in all chordates? 8 Sharks are in what group within the phylum…

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Q: Which of the following is correct regarding the reptilian and mammalian vertebra? A. Their cervical…

A: Mammals: Mammary glands, which produce milk for nourishing (nursing) their young in females, a…

Q: 95.The stratigraphic range of cephalopods as a whole is Ordovician to Recent T F

A: The stratigraphic range is a bar chart that gives information about the fossil distribution.

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A: Chordata is the phylum that is characterized by the presence of a notochord, a dorsal hollow nerve…

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A: Brachiopoda are lophotrochozoan animals with hard "valves" (shells) on the upper and lower surfaces,…

Q: 1. Based on the tree below, which statement is not correct? Salamander Lizard Goat Human a. The…

A: Phylogeny is defined as the study of a species or a group of related species' evolutionary history.…

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A: The evolution of fish began about 530 million years ago during the Cambrian explosion. It was during…

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A: The study of chemical reactions that occurs within living organisms is called biochemistry. This…

Q: . Which of the following characteristics separate "Classic" (European) Neanderthals from Neanderthal…

A: An occipital bun

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A: Chordates are bilaterally symmetrical, coelomic, deuterostomic animals with a well-defined…

Q: 1.Explain how crocodilian morphology makes it an ideal ambush hunter.

A: Crocodiles are reptiles which are mostly habitat in hotter tropical regions of the world. This large…

Q: 3. Macroevolutionary events in the fossil record include all of the following, except the origın of:…

A: Macroevolution is evolution on the grand scale: the term refers to events above the species level;…

Q: Evolution Thinket # I. Pterodactyl (reptile) 1 2. Bat (mammal) 3. Albatross (bird) Why are the wings…

A: Analogous structure: These are the structures that are similar in function but not in structure and…

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Q: 1. Why is it important (or interesting) to find transitional fossils? 2. What are the different…

A: Answer 1  : A short fossil may be described as a fossil that reflects common features in both…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.