Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 40.2, Problem 1C
Summary Introduction
To describe: The way in which septa in annelid worms contribute to the effectiveness of its hydrostatic skeleton.
Introduction: Many annelids have a hydrostatic skeleton, which works on the principle of hydrostatic pressure. Septa are muscular partitions, creating segments in the bodies of annelids and helping in their locomotion.
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Chapter 40 Solutions
Biology (MindTap Course List)
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- What features of a hydrostatic skeleton do Sponges, Cnidarians, Nematodes, Annelids, and Arthropods each possess? and which features do they each lack?arrow_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_forwardHow many chambers does a scoliodon have?arrow_forward
- How can the presence, localization and function of muscular tissue in beings of the phylum Annelida be explained?arrow_forwardDescribe the exoskeleton and examples of organisms with this type of skeleton Which is the main component of the exoskeleton of arthropods?arrow_forwardExplain the differences in vertebrate appendicular musculature between fishes and tetrapods. How does these changes in musculature influence locomotion from fishes to mammlas?arrow_forward
- Explain how the hydrostatic skeleton of annelids helps them to burrow.How is the efficiency for burrowing increased by segmentation?arrow_forwardwhat is transverse septum in sharks? is it analogous to diaphram if not that what is the specific part in sharks body?arrow_forwardExplain the major advantages and disadvantages of mollusk exoskeletons in comparison to worm hydrostatic skeletons and vertebrate endoskeletons. Minimum of 3 paragraphs.arrow_forward
- What are various podomeres that make walking legs of the insects? Explain brieflyarrow_forwardHow does the arrangement of skeletal structures differ in sea urchins, sea stars, and brittle stars? How do these differences establish the way these animals move?arrow_forwardexamine the morphology and anatomy of starfish. Notice the ossicles and plates that constitute their skeleton. What is it made of and how is it different from the skeleton of arthropods?arrow_forward
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