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 26.5, Problem 1CC
Summary Introduction
To describe:
The dominant life stages for the given cnidarians: jellyfish, sea anemone, and Portuguese man-of-war.
Introduction:
In Cnidaria, two forms of life is observed, polyp and medusae. Cnidaria is represented by polyps such as sea anemones and corals, and by medusae such as jellyfish. A polypoid or a medusoid cnidarian is a radially or biradially symmetrical, uncephalized animal with a single body opening, the mouth. The mouth is surrounded by tentacles studded with microscopic stinging capsules known as nematocysts that are the agents of offense and defense. The possession of intrinsic nematocysts is the defining characteristic of the phylum.
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Chapter 26 Solutions
Principles of Biology
Ch. 26.1 - Prob. 1TYKCh. 26.2 - Prob. 1BCCh. 26.2 - Prob. 1CCCh. 26.2 - What are the mam members of the Ecdysozoa?Ch. 26.2 - In protostomes the blastopore becomes the mouth....Ch. 26.2 - In triploblastic animals, the inner lining of the...Ch. 26.2 - Pseudocoelomates lack a fluid-filled cavity. have...Ch. 26.3 - Prob. 1TYKCh. 26.4 - Prob. 1CCCh. 26.4 - Prob. 1TYK
Ch. 26.4 - Prob. 2TYKCh. 26.5 - Prob. 1CCCh. 26.5 - Prob. 1TYKCh. 26.6 - Prob. 1CCCh. 26.6 - Prob. 2CCCh. 26.6 - Prob. 1BCCh. 26.6 - What are some of the advantages of segmentation?Ch. 26.6 - Platyhelminthes possess a lophophore. a coelom....Ch. 26.6 - Prob. 2TYKCh. 26.6 - Prob. 3TYKCh. 26.7 - Prob. 1CCCh. 26.7 - Prob. 2CCCh. 26.7 - Prob. 3CCCh. 26.7 - Prob. 1BCCh. 26.7 - Prob. 1TYKCh. 26.7 - Prob. 2TYKCh. 26.7 - Prob. 3TYKCh. 26.8 - Echinoderms and chordates are both deuterostomes....Ch. 26.8 - Prob. 1BCCh. 26.8 - Prob. 1TYKCh. 26.8 - Prob. 2TYKCh. 26.8 - Prob. 3TYKCh. 26 - Prob. 1TYCh. 26 - Prob. 2TYCh. 26 - Prob. 3TYCh. 26 - Prob. 4TYCh. 26 - Prob. 5TYCh. 26 - Prob. 6TYCh. 26 - Prob. 7TYCh. 26 - Prob. 8TYCh. 26 - A defining feature of the Ecdysozoa is a segmented...Ch. 26 - Incomplete metamorphosis is characterized by...Ch. 26 - Prob. 1CCQCh. 26 - Compare and contrast the five main feeding types...Ch. 26 - Prob. 3CCQCh. 26 - Prob. 1CBQCh. 26 - Prob. 2CBQ
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- Which of the following is NOT a characteristic of nematodes? ► View Available Hint(s) O Adult nematodes contain both types of sex organs in the same body. Nematodes have a cuticle. Nematodes are unsegmented. Nematodes have a digestive tract. Submit Previous Aswers X Incorrect; Try Again; One attempt remainingarrow_forwardIdentify and label the parts of the following specimens of Phylum Nematoda:arrow_forwardWhat are the unifying characteristics of Sardinella tawilis under the following taxonomic ranks: Class - Actinopterygii — Order - Clupeiformes —arrow_forward
- What are the two main morphological patterns of cnidarians? Concerning locomotion how do these forms differentiate from each other?arrow_forwardFor the phylum Gastrotricha please provide: - -- General biology. Approximately how large is the phylum? What do they look like? In what types of environments are they found? What do they eat? Do they have any unique body structures? --Phylum features. Protostome vs deuterostome vs?? Type of digestive system, circulation, respiration, mode of reproduction (note some of these structures may be absent or not known in which case say that don’t just leave them out). --Phylogenetic position. What other phyla are close relatives? What features do they share? Show recently accepted phylogeny.arrow_forwardCompare and contrast the 5 major extant groups of actinopterygii: 1.polypteriformes 2.chondrostei 3. lepisosteida 4.amiidae 5. teleosteiarrow_forward
- Describe characteristics of nematodes and identify four parasitic nematodes.arrow_forwardwhat is the common adaptation in many nematodes enabling them to survive adverse conditions while awaiting return of more congenial circumstances.arrow_forwardFour of the five answers listed below are characteristics of cnidarians. Select the exception. O ciliated larvae O polyp form O jellylike matrix O nematocyst O pharynxarrow_forward
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