CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 18, Problem 20TYK
A marine biologist has dredged up an unknown animal from the seafloor. Describe some of the characteristics that could be used to determine the animal phylum to which the creature should be assigned.
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View the preserved arthropod specimens available. There will be at least one example
of each lineage group discussed on the website but not all of the specimens may be
available. Use the table on the next page to organize your observations.
Specialized
segments
Name of
Lineage
Exoskeleton?
Jointed
specimen
Formica rufa
appendages?
Pandinus
imperatur
Rhinotia
hemistictus
Eurytides
marcellus
Ranina ranina
Charles a Biology student in California has found at the beach an animal he cannot name. What are some of the questions that he should ask to help determine the phylum of the animal?
Fill up the following table according to the given classification of animals:
Chapter 18 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 18 - Prob. 1CCCh. 18 - Identify the pattern of embryonic development...Ch. 18 - Bilateral symmetry in animals is best correlated...Ch. 18 - Jon found an organism in a pond, and he thinks its...Ch. 18 - Which of the following groupings includes the...Ch. 18 - Which of the following animal groups does not have...Ch. 18 - Prob. 7TYKCh. 18 - Prob. 8TYKCh. 18 - Prob. 9TYKCh. 18 - Prob. 10TYK
Ch. 18 - The simplest animal group a. annelids b. nematodes...Ch. 18 - Prob. 12TYKCh. 18 - Largest phylum of all a. annelids b. nematodes c....Ch. 18 - Closest relatives of chordates a. annelids b....Ch. 18 - Prob. 15TYKCh. 18 - Prob. 16TYKCh. 18 - Prob. 17TYKCh. 18 - Name two phyla of animals that are radially...Ch. 18 - One of the key characteristics of arthropods is...Ch. 18 - A marine biologist has dredged up an unknown...Ch. 18 - SCIENTIFIC THINKING In one of the experiments...
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- Create a cladogram for these organisms and explain how they are related Earthworm - tuna - lizard - mouse - humanarrow_forwardIdentify the phylum/division for this organismarrow_forwardUse the cladogram below to answer the question that follows. Arachnata Trilobita Chelicerata Arthropoda Crustacea Mandibulata Myriapoda Insecta The closest common ancestor of Trilobita and Chelicerata is O Mandibulata O Insecta O ARthropoda O Arachnataarrow_forward
- Determine the scientific names of the fish below by using the dichotomous key provided below. Answer through table provided below. Step 1-If fish shape is long and skinny go to Step 2-If fish shape is not long and skinny go to Step 3 Step 2-If the fish has pointed fins, it is a trumpet fish (Aulostomus maculatus)-If the fish has smooth fins, it is a spotted moray eel (Gymnothorax moringa) Step 3-If fish has both eyes on top of the head go to Step 4-If fish has one eye on each side of the head go to Step 5 Step 4-If the fish has long whip-like tail, it is a spotted eagle ray (Aetobatus narinari)If the fish has short, blunt tail,it is a peacock flounder (Bothus mancus) Step 5-If fish has spots go to step 6-If fish does not have spots go to step 7 Step 6-If fish has chin “whiskers,” it is a spotted goatfish (Parupeneus barberinus)-If fish does not have chin “whiskers,” it is a band-tail puffer (Arothron…arrow_forwardAfter examining the different specimens, construct a dichotomous key to the different phyla. Construct a dichotomous key to the classes of Phylum ARTHROPODODA according to observable morphological features. Class Chilopoda (specimen: Scolopendra (centipede) ) Class Diplopoda (specimen: Aclacodricus (millipede)) Class Insecta (specimen: Melicodes (grasshopper)) Class Crustacea (specimen: Penaeus (shrimp) & Portunus (crab) ) & Class Arachnida (specimen:Theridion (spider))arrow_forwardYour colleague is studying a newly discovered organism. She is becoming increasingly convinced that the organism is an arthropod. You find that you must respectfully disagree when you note that the organism has a set of distinctly non-arthropod characteristics. The features that cause you to exclude the organism from the arthropod grouping are antennae, six legs, and mandibles. pseudocoel, closed circulatory system, and ventral heart. Malpighian tubules, ommatidia, and tagmata. jointed legs, ecdysis, and an exoskeleton. compound eyes, book lungs, and a hemocoel.arrow_forward
- Name the phylum.arrow_forwardUse the cladogram below to answer the question that follows. Arachnata Trilobita Chelicerata Arthropoda Crustacea Mandibulata Myriapoda Insecta Which of the organisms are the most distantly related? O Mandibulata and Arachnata O Arthropoda and Trilobita O Trilobita and Insecta O Insecta and Arthropodaarrow_forwardIn tabular form, make a list of any invertebrate animals and evaluate the characters (whether primitive or derived). After that, construct a cladogram.arrow_forward
- A fishing net brings up a soft bodied animal with a coiled external shell. How can you determine whether the animal is a gastropod or a cephalopod? A) give one unique trait that would allow you to identify the organism as a member of class gastropoda. B) give one unique trait that would allow you to identify the organism as a cephalopodarrow_forwardConstruct a character matrix by making observations on the different features of the following group of invertebrates. On the table, write 1 if the character is present in (or exhibited by) the group; 0 if absent (or is not exhibited). Group of organisms Segmentation Coelom Jointed appendages Cephalization Tissues Radial symmetry Porifera Arthropods Cnidarians Nematodes Annelids Input the characters in the pre-made cladogramthat is provided for you. Also, write in the empty boxes the correct group of organisms to show relationships. One character and one group of organism is done for you.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_forward
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