Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 35.1, Problem 2TYK
Summary Introduction
Introduction:
Skeleton is a hard structure that protects the internal organs of a living organism. Skeletons can be inside the body or outside the body. In mammals, the skeleton is made up of bones. All the bones, when they are joined together, make the "skeletal system" of a body.
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Animals that have true tissues, bilateral symmetry, segmented bodies, and are protostomes are known as:
Arthropods
Cnidarians
Sponges
Chordates
Animals with bilateral symmetry
can be divided into similar halves by any plane through the longitudinal axis.
are usually very slow-moving organisms.
are relatively simple in structure.
are better adapted for forward movement than radially symmetrical organisms.
An arthropod body is described as having three key features: A segmented body, an exoskeleton, and jointed appendages.
true or false?
Chapter 35 Solutions
Principles of Biology
Ch. 35.1 - Prob. 1CCCh. 35.1 - Prob. 1TYKCh. 35.1 - Prob. 2TYKCh. 35.2 - Prob. 1CCCh. 35.2 - Rigor mortis is the condition that occurs shortly...Ch. 35.2 - Prob. 1BCCh. 35.2 - Prob. 3CCCh. 35.2 - Prob. 2BCCh. 35.2 - Prob. 1TYKCh. 35.2 - Prob. 2TYK
Ch. 35.3 - Prob. 1TYKCh. 35.4 - Prob. 1TYKCh. 35.4 - Prob. 2TYKCh. 35 - Prob. 1TYCh. 35 - Which, if any, of the following is not a function...Ch. 35 - Prob. 3TYCh. 35 - Prob. 4TYCh. 35 - Prob. 5TYCh. 35 - During cross-bridge cycling, binds to _________,....Ch. 35 - Prob. 7TYCh. 35 - Prob. 8TYCh. 35 - Prob. 9TYCh. 35 - Prob. 10TYCh. 35 - Prob. 1CCQCh. 35 - Prob. 2CCQCh. 35 - Prob. 3CCQCh. 35 - Discuss the structure and function of the two...Ch. 35 - Prob. 2CBQ
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- Which of the following is not a feature common to most animals? a. development into a fixed body plan b. asexual reproduction c. specialized tissues d. heterotrophic nutrient sourcingarrow_forwardThe arthropod exoskeleton is the most complex of invertebrate in-teguments. Describe its structure, and explain the difference in the way cuticle is hardened in crustaceans and in insectsarrow_forwardAnimals in __________ and __________ typically have structural features made of calcium. Group of answer choices Chondrichthyes, Osteichthyes Annelida, Arthropoda Chordata, Annelida Echinodermata, Mollusca Mollusca, Chondrichthyesarrow_forward
- Exoskeletonsa. are typical of vertebrates.b. are hydrostatic.c. must be shed periodically.d. are moved by muscles attached to the outside of joints.arrow_forwardSponges from the phylum Porifera ... [choose the incorrect response} Question 29 options: have an endoskeleton exhibit rudimentary cephalisation diverged from all other animals early in the history of animals are filter feedersarrow_forwardyou are dissecting a sea star on the arboral side and you remove the endoskeleton of one arm only, not the central disc. What is the organ that should be sitting at the top? a) ambulacral ridge b) water vascular system c) gonads d) pyloric caecaarrow_forward
- Which of the following is NOT a characteristic of the exoskeleton of an arthropod? A. Always laden with calcium salts. B. Chitinized with an outer layer of cuticle. C. The plates are connected with an articular membrane. D. Composed of the tergum, sternum and pleura plates.arrow_forwardFigure 28.21 Which of the following statements about the anatomy of a mollusk is false? Mollusks have a radula for grinding food. A digestive gland is connected to the stomach. The tissue beneath the shell is called the mantle. The digestive system includes a gizzard, a stomach, a digestive gland, and the intestine.arrow_forwardFigure 27.9 Which of the following statements about diploblasts and triploblasts is false? Animals that display radial symmetry are diploblasts. Animals that display bilateral symmetry are triploblasts. The endoderm gives rise to the lining of the digestive tract and the respiratory tract. The mesoderm gives rise to the central nervous system.arrow_forward
- Which of the following does not occur? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostomearrow_forwardCrayfish, unlike earthworms, do not have a hydrostatic skeleton. Instead, crayfish have a rigid exoskeleton. Give 2 advantages to the having the exoskeleton and 2 disadvantages.arrow_forwardObserve the exoskeleton of the marine blue crab. What do you think they are made of?arrow_forward
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