Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 33, Problem 13TYK
Summary Introduction
Introduction: Animal phylogeny is the rapidly changing field for the biologists. Even if the members of animal kingdom are incredibly diverse, there are various animals sharing certain features that differentiate them from other organisms of the kingdom.
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Flatworms can reach a maximum size of around 40cm. Whilst this is big for a worm, there are certainly larger animals on earth. What might it be that restricts the flatworms body size?
A.
They have an exoskeleton that restricts their growth.
B.
They do not have a circulatory system.
C.
They are exothermic animals that have limited energy for growth.
D.
They are acoelomates and so the growth of their internal organs is restricted by growth of the outer body wall.
Nematodes once were thought to be closely related torotifers due to the presence of a pseudocoelom but are nowconsidered more closely related to the arthropods due toa. molting. c. wings.b. jointed appendages. d. a coelom.
What is a key characteristic of all arthropods?a. Six legsb. Pseudocoelomc. Mandiblesd. Exoskeleton
Chapter 33 Solutions
Study Guide for Campbell Biology
Ch. 33 - Prob. 1IQCh. 33 - Prob. 2IQCh. 33 - a. Describe the digestive system of a planarian....Ch. 33 - Prob. 4IQCh. 33 - Prob. 5IQCh. 33 - Compare the locomotion of an earthworm and that of...Ch. 33 - Prob. 7IQCh. 33 - Prob. 8IQCh. 33 - Prob. 9IQCh. 33 - Prob. 10IQ
Ch. 33 - Use the following evolutionary tree (which is...Ch. 33 - Invertebrates include a. all animals except for...Ch. 33 - Prob. 2TYKCh. 33 - Prob. 3TYKCh. 33 - Prob. 4TYKCh. 33 - Prob. 5TYKCh. 33 - Hermaphrodites a. contain male and female sex...Ch. 33 - Prob. 7TYKCh. 33 - Prob. 8TYKCh. 33 - Prob. 9TYKCh. 33 - Prob. 10TYKCh. 33 - Prob. 11TYKCh. 33 - Prob. 12TYKCh. 33 - Prob. 13TYKCh. 33 - Prob. 14TYKCh. 33 - Prob. 15TYKCh. 33 - Which of the following phenomena is not considered...
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- Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. Vertebrataarrow_forwardWhat characteristic is common to the flatworms, molluscs, and annelids? a. All have bilateral symmetry. b. All are acoelomates. c. All are parazoans.d. All are vertebrates.arrow_forwardWhich characteristic(s) account(s) for the success of arthropods? a. jointed appendages b. segmentation c. an exoskeleton d. All of the above are correct.arrow_forward
- In which of the following aspects are nematodes more complex than flatworms? a. External cephalization b. None among the other choices c. Musculature of the body wall d. All of the other choices (except "None among....") e. Osmoregulatory and excretory systemsarrow_forwardplease explain What is the primary characteristic of the Ecdysozoa (Nematoda + Arthopoda)? 1. They all have spiral cleavage. 2. They shed their exoskeletons and have the ability to molt. 3. None of the options in correct 4. They all have segmentation. 5. They all have tropchophore larvae.arrow_forwardWhat organisms can survive without a mouth, digestive system, oranus?a. cnidarians b. rotifers c. echinoderms d. cestodes e. nematodesarrow_forward
- Pretend you see an animal at the ocean under a rock. It's 4 cm long. At first you think it might be a centipede but it's soft-skinned and the leg like things are not jointed, they are also very soft. What is it most likely to be? A. polychaete annelid B. hemichordate C. sea cucumber D. hexapod 11arrow_forwardWhich of the following is NOT a characteristic of annelids? A.they have a closed circulatory system B.they reproduce through sexual reproduction C.there are both male and female earthworms D.they are able to sense vibrations in the groundarrow_forwardexamine the morphology of a millipede and a butterfly. What characters do they share? Notice how their bodies are divided into several specialized regions called tagmata. How did tagmatization contribute to the diversity of arthropods?arrow_forward
- Which of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c. Hexapoda d. Chelicerataarrow_forwardAn unidentified animal is noted to possess the following characteristics: triploblastic eucoelomate body a cuticle that is shed via ecdysis To which of the following phyla does this organism belong? Group of answer choices A. Echinodermata B. Annelida C. Arthropoda D. Nematodaarrow_forwardWhich features are true of sea cucumbers? A. use the water vascular system to move on the seafloor and suction to mollusks to feed on B. have leathery skin, least like the other organisms in the phyla, long lanky body C. feed on algae, no true arms, have 5 layers of tube feet D. thrash arms around to move, feed using the water vascular system 8 Copyright © 2003-2022 International Academy of Science. All Rights Reserved. search O R. T. H 64°F Mostly cloudy A O Larrow_forward
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