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1. What characteristics led camels to be classified in the same domain, kingdom, phylum, and class as dogs?
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- 1. Humans (Homo sapiens) and domestic dogs (Canis lupus familiaris) both belong to all of the following taxonomic categories, with the exception of: A. Order Carnivora (meat is the primary food for adults) B. Class Mammalia (infants obtain nutrition from their mother's milk) C. Phylum Chordata (all adults possess a dorsal spinal cord or nerve cord) D. Kingdom Animalia (multicellular ingestion feeders that can synthesize collagen proteins) E. Domain (or Superkingdom) Eukaryota (organisms that possess a true nucleus)1. There are two main groups of bats: Smaller “microbats” navigate by using sonar, and larger “megabats” rely on vision. Mammalogists once thought that both kinds of bats evolve from insectivorous mammals. But similarities between the visual systems of megabats and primates have led some researchers to think that megabats may have evolved from primates, perhaps lemurs. What results would support the hypothesis that the two groups of bats have a common origin? Separate origins?6. Organisms classified as “birds” share a common feature. What shared derived character defined this taxonomic group? 7. What feature is present in all animals but is not present in birds and reptiles? 8. Reptiles, birds, and mammals are amniotes. I’m addition to an amniotic egg, the common ancestor of all reptiles, birds, and mammals had a thick epidermal layer of scales partially composed of a protein called keratin. Keratinized skin helps prevent water loss in terrestrial environment. A. what type (or form) of Keratinized epidermal structure represents the ancestral character state of all reptiles, birds, and mammals?
- 5a. Define each of the 3 categories of mammals: Eutherians Marsupials Monotremes:1. What is the genetic link between Amphioxus and humans? 2. What is the significance that all species described in these films (Amphioxus, sharks, and humans) belong to the same Phylum? 3. What is the significance that sharks have the same three brain regions as humans? What is the explanation for that?11.What does Molly possess that most humans do not? 12.Where are fish gonads located? 13.What is Sonic Hedgehog responsible for? 14.How many fingers do people in the Hubbard family have? 15.How far back can we trace the Sonic Hedgehog gene? 16.What does the name Tiktaalik mean? 17.Who was the first to predict that an animal like Tiktaalik would exist? 18.What features does Tiktaalik have that fish typically do not? 19.What type of exercise could Tiktaalik do that other fish cannot? 20.What is the piece of anatomy that changed the world?
- 1. Identify traits that characterize all animals. 2. State one way that animal cells differ from the cells of plants and fungi. What is the significance of this difference? 3. State how the phylum Chordata differs from other animal phyla. 4. List three traits that evolved in invertebrate animals. 5. Describe the range of variation in the nervous systems of invertebrates. 6. Distinguish among asymmetry, radial symmetry, and bilateral symmetry.8. Which of the following is not unique to animals? A) The structural protein collagen B) Nervous conduction and muscular movement C) Regulatory genes called Hox genes D) Sexual reproduction9. a. What fossil primate possesses traits of both anthropoids and hominoids? b. What are those traits and how are they attributed to either anthropoids or hominoids?
- 7. Primates have prehensile hands (and sometimes they have prehensile feet). What does this mean? OA. They have five digits on each hand and foot. B. They have nails rather than claws. C. Their hands are adapted for seizing or grasping. OD. They have an opposable thumb, which allows for a precise grip. O 17:48:40 q W SIS y UHow can we understand the evolutionary relationships among animals, and how, in turn,can we understand the biological traits that have given rise to such great diversity on a few branches of the animal tree of life?3. Which of the following chordates are believed to have been the most recent vertebrate group to evolve (from Archaeopteryx, during the Jurassic and Cretaceous Periods, about 150 to 65 million years ago)? A. Class Amphibia (e.g., frogs, toads, salamanders, and caecilians) B. Class Aves (e.g., eagles, penguins, pelicans, and sparrows) C. Class Agnatha (e.g., conodonts, hagfish, and the sea lamprey) D. Class Reptilia (e.g., lizards, snakes, turtles, and crocodiles) E. Class Mammalia (e.g., mice, rats, dogs, wolves, and humans)