Draw a phylogenetic tree that has these 8 animals: Human, Insect, Sponge, Jellyfish (jelly), Placoderm, Cuttlefish, Coral, Sea Urchin (urchin). With these 8 characteristics: (to be mapped on your tree) - Single-lens (camera) eye -Metazoa -Deuterostome development ('Deuterostome') -Bilateral symmetry ('Bilateral') - Innate immune system (Innate') - Eumetazoa - Viviparous - Determine a derived characteristic for Cnidaria and map it on your tree

Draw a phylogenetic tree that has these 8 animals: Human, Insect, Sponge, Jellyfish (jelly), Placoderm, Cuttlefish, Coral, Sea Urchin (urchin). With these 8 characteristics: (to be mapped on your tree) - Single-lens (camera) eye -Metazoa -Deuterostome development ('Deuterostome') -Bilateral symmetry ('Bilateral') - Innate immune system (Innate') - Eumetazoa - Viviparous - Determine a derived characteristic for Cnidaria and map it on your tree

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter18: Introduction To Darwinian Evolution

Section: Chapter Questions

Problem 16TYU: INTERPRET DATA Which of the primates in Figure 18-18 is the most distantly related to humans?...

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Draw a phylogenetic tree depicting our current understanding of the animal phylogeny. Include the major groups of animals at the tips of your tree: Deuterostomia, Protostomia, Lophotrochozoa, Ecdysozoa, Porifera, and Cnidaria. Additionally, label the common ancestor of all animals, indicate which groups are considered invertebrates, and indicate where the vertebrates fit within the phylogeny. Write on your tree where the following characteristics arose as evolutionary innovations: multicellularity, true tissues, radial and bilateral symmetry, animals with 2 germ layers and animals with 3 germ layers.
The name for the monophyletic group of animals that includes all reptiles, mammals, birds, and amphibians is the ----- . This group is characterised by the evolution and shared presence of ----- . However, some members of this group do not possess this feature because of a process called ----- loss. Snakes are famously legless reptiles, but other reptiles have also lost their limbs to varying degrees. Within the family ---- , we see species that have no limbs and some that have only hind limbs. In the genus ---- we can find species that have fully pentadactyl limbs, as well as those with only 3, 2, or 1 --- per foot.
Based on their anatomical and behavioral differences, biologists previously placed humans and chimpanzees in different families, but now DNA sequence data suggest that they are closely related and should be placed in the same family. What are some advantages of using DNA sequences to decide how to classify organisms? What might be some disadvantages?
Over the long period of time that life has existed on Earth, there have been a number of important or significant innovations including (but not limited to) endosymbiosis to create mitochondria and chloroplasts; multicellularity; adaptation to land by plants and animals; development of exoskeletons in arthropods, shells in molluscs, and notochords followed by vertebral columns in chordates and vertebrates; and bipedalism in the ancestry of humans. All of these had to come about by natural selection in response to changing environmental forces. After studying the textbook reading assignment, pick one of the significant innovations listed above and describe:: a. How the innovation appears to have happened b. What environmental challenges were met and overcome by this innovation, and c. What opportunities were opened for the organism that made this innovation B. You must include in your post an example of at least one species and demonstrate that vou understand scientific nomenclature by…
1. Contrast homology and analogy. Give an example of homoplasy. 2. Discuss adaptation and preadaptation. 3. Compare and contrast divergent, convergent, parallel, and organic evolution. 4. What is a vestigial structure? A rudimentary structure? 5. Describe heterochrony – specifically paedogenesis, neoteny, and paedomorphosis.
Evolutionary theory predicts that species are related, not independent. Four of the following examples provide support for this prediction, but one is irrelevant. Which of examples listed below does not support the claim that species are related? A. Many dinosaurs and other organisms went extinct following a huge asteroid impact at the end of the Cretaceous. B. Before synthetic insulin was available, diabetics used injections of purified pig insulin to manage their disease. C. The endostyle of lancelets (invertebrate chordates) and the thyroid gland of vertebrates develop similarly, and both produce iodinated proteins. D. All prokaryotes and eukaryotes use DNA to carry their genetic information. E. Ground squirrel species found on the North and South sides of the Grand Canyon are very similar to each other.
15. Organ systems of groups of animals show a similar pattern that may differ to a certain extent among members belonging to the same phylum. Similarities of that are based on homologous organs provide information on evolutionary relationships. All of the following are homologous structures EXCEPT: * a. Humans’ arm b. Bat’s wing c. Dolphin’s flipper d. Fish tail 16. Mrs. Santos discussed the topic Natural Selection to his grade 10 students to understand the evolutionary changes in the environment and organisms. Which of the following is TRUE about Natural Selection? * a. Majority of the population will possess unfavorable traits and it becomes maladapted in the environment. b. Humans choose and breed selected animals with particular traits to reproduce. c. The most adapted individuals die and become extinct.…
See attached. 1. Which pair of animals in numbers 1-3 belongs to a common ancestral group? Explain your answer.2. Fossils and anatomical records both provide pieces of evidence of evolution. How do you determine the age of fossils of an Aurorazhdarcho micronyx and an Archeopterix?
The taxon Crocodilia includes crocodiles, Aves includes birds, and Squamata includes snakes and lizards. If we think of Crocodilia and Squamata as reptiles, what kind of phylogenetic group do they form? (paraphyletic, monophyletic, polyphyletic)
You have the chance to use the very first time-machine created by humans. You volunteer to travel 520 million years back in time to collect coastal marine animals. The first organism you encounter is unusual looking and does not resemble any extant organism you know. You notice that the body is segmented, and the segments are not identical. You also notice that the organism has well developed eyes and one pair of long antennae. Their jointed appendages are branched but unequal in size and have various shapes. Moreover, the body appears to be rigid and covered dorsally with numerous spines. Try to classify this organism (e.g., its phylum) based on its appearance and describe its symmetry. Then speculate on its ecology, likely life history (reproduction), and key developmental features. The second organism that you encounter is fixed to the substrate, firm, and has fan shape with finger like projections. It is brightly colored. As you observe it, a few branches of the fan break off. You…
At the beginning of the Paleozoic era, animals underwent an adaptive radiation event, called the Cambrian explosion. During this relatively short span of geological time, the ancestors of most animal phyla arose. Classification of taxa at the rank of phylum is based largely on body plan, which is laid out during embryonic development. Answer the questions that follow: What environmental condition may have contributed to the Cambrian explosion? What is one evolutionary novelty (phenotypic trait) that also contributed to the Cambrian explosion? Genetic and developmental mechanisms also contributed to the Cambrian explosion. Before the Cambrian, animals were small with simple body plans (g., sponges and jellyfish). By the end of the period, larger animals with complex body forms had evolved (e.g., arthropods and vertebrates). Did the following genetic mechanisms impact the evolution of body plan complexity? Provide a brief explanation for each answer. gene duplication…
This chapter shows a phylogenetic tree for the three domains of life, which is based on DNA sequence data for rRNA and other genes. Which of the following answers concerning the phylogenetic relationships found within this tree is incorrect? View Available Hint(s)for Part A Euryarcheotes are found in the Archaea Diatoms, Tubulinids, and Euglenozoans belong to the domain Eukarya Forams, Fungi, and Chlamydias belong to the domain Eukarya. Spirochetes belong to the domain Bacteria Ciliates, Red Algae, and Plants belong to the domain Eukarya.