2 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781264439218
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 32.3, Problem 1LO
Summary Introduction
To determine: The characters that distinguish the major animal phyla.
Introduction: The term classification refers to the categorization of living organisms on the basis of certain characteristics features which are either similar or different in the organisms. Animals sharing similar features are placed within the same taxonomic category and those which exhibit dissimilarity are placed separately.
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Make a phylogenetic tree about:
Animalia● Vertebrates● Invertebrates● Porifera● Coelenterata (Cnidaria)● Platyhelminthes● Nematoda● Annelida● Arthropoda● Mollusca● Echinodermata● Hemichordata● Chordata
(Label all the synapomorphies and include descriptions and side notes)
BIOLOGY: Major Animal Phyla
After examining the different specimens, construct a dichotomous key to the different phyla.
1. Develop a DICHOTOMOUS KEY to the CLASSES of Phylum
ECHINODERMATA:
Class Asteroidea (specimen: Linkia (blue sea star)),
Class Ophiuroidea (specimen: Ophiotrix (brittle star)),
Class Echinoidea (specimen: Diadema (black sea urchin)), &
Class Holothuroidea (specimen: Holothuria (sea cucumber))
2. Develop a DICHOTOMOUS KEY to the CLASSES of Subphylum
VERTEBRATA;
Class Amphibia (specimen: Rhinella marina (toad)),
Class Reptilia (specimen: Coura amboinensis (turtle), Hemidactylus (house
lizard), Elaphe erythrura (snake)),
Class Aves (specimen: Gallus gallus (chicken)),
Class Mammalia (specimen: Homo sapiens (human))
Accurately depict the evolutionary relationships among spiders, birds, porifera, homosapiens, lampreys, nematoda, tuna, clam and jellyfish by listing them in order from most closely related to most distantly related. Indicate where different types of body symmetry arise and where major evolutionary features originated in vertebrates.
Chapter 32 Solutions
2 SEM ACC W/RAVEN CARDED
Ch. 32.1 - Prob. 1LOCh. 32.2 - Prob. 1LOCh. 32.2 - Prob. 2LOCh. 32.2 - Prob. 3LOCh. 32.3 - Prob. 1LOCh. 32.3 - Prob. 2LOCh. 32.3 - Prob. 3LOCh. 32.4 - Prob. 1LOCh. 32.4 - Prob. 2LOCh. 32.5 - Prob. 1LO
Ch. 32.5 - Prob. 2LOCh. 32.5 - Prob. 3LOCh. 32.6 - Prob. 1LOCh. 32.6 - Prob. 2LOCh. 32 - Prob. 1IQCh. 32 - Prob. 1UCh. 32 - Animals are unique in the fact that they possess...Ch. 32 - In animal sexual reproduction the gametes are...Ch. 32 - The evolution of bilateral symmetry was a...Ch. 32 - A fluid-filled cavity that develops completely...Ch. 32 - Which of the following statements is NOT true...Ch. 32 - Which of the following characteristics is used to...Ch. 32 - With regard to classification of animals, the...Ch. 32 - The coelom a. is a synapomorphy for the clade...Ch. 32 - A coelomate organism may have which of the...Ch. 32 - Which of the following cell types of a sponge...Ch. 32 - Prob. 12UCh. 32 - Prob. 13UCh. 32 - The following diagram is of the blastopore sage of...Ch. 32 - Prob. 2ACh. 32 - Prob. 3ACh. 32 - Which of the following cell layers is not...Ch. 32 - Prob. 2S
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- Which major groupings of animals defined on the basis of morphological characters have been confirmed by molecular sequence studies?arrow_forwardWhat is the significance of the binomial nomenclature in the classification of the vertebrates? If you were to devise another means of classifying organisms, what would it be? Compare and contrast ectothermy and endothermy, including their pros and cons.arrow_forwardWhat are the five major unranked taxa above the phylum level in animal taxonomy?arrow_forward
- which of the following are animal characteristics? select all that apply? a) movement b)multicellular c)specialized tissues d)heterotrophicarrow_forwardGive certain primitive characters with all members of kingdom Animalia (adapted from Krempels and Lee, 2013). List five primitive characters all humans share with all other animals, but not with any other living things.arrow_forwardlist all of the five kingdoms that are used to classify all living organisms.arrow_forward
- Examine the image of the relatedness of vertebrates represented in this phylogenetic tree. Which statements are correctly inferred from this tree? Select all that apply. A) The mammals are the outgroup in this tree. B) Birds and dinosaurs share a recent common ancestor. C) Mammals and birds are more closely related than any other species. D) Turtles are equally as diverged from lizards and snakes as they are from crocodiles. E) Lizards and snakes are more recently diverged from each other than they are from crocodiles.arrow_forwardGive an overview of the different characteristics of the major animal phyla using the table below (1-3 sentence per box only)arrow_forwardGive an overview of the different characteristics of the major animal phyla using the table below (1-3 sentence explanation per box only)arrow_forward
- Which of the following statements regarding the diversification of animals is supported by the current available evidence? a) most animals belong to the clade Bilateria b) sponges are a paraphyletic group of organisms c) ctenophores are basal metazoans d) animals descended from multiple ancestorsarrow_forwardWhich is NOT an example of a structural homology? Please choose all applicable options. a) All vertebrate embryos form pharyngeal pouches.b) Vertebrate forelimbs generally have the same number and a similar arrangement of bones.c) The same group of embryonic cells forms the adult jaw of a perch and of a dog.d) All organisms share a common genetic code.arrow_forwardList in order, from most inclusive to least inclusive, the principal categories (taxa) in Linnaean classification as currently applied to animals.arrow_forward
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