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 26.4, Problem 1CC
Summary Introduction
To describe:
Sponges are soft and sessile, but they are not eaten by other organisms.
Introduction:
The sponges (phylum Porifera) are simple invertebrate animals that live in an aquatic environment. All adult sponges are sessile, i.e., they live permanently attached to rocks or other submerged objects and hence lack motility. A few species can even bore into hard surfaces like clamshells, coral skeletons, and rock. Sponges have pores on their bodies and thus the name Porifera.
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Why are glass sponges distinguished from sponges with cellular bodies?
Explain how the system of pores operate in a typical sponge.
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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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- compare choanoflagellates and choanocytes of sponges based on their morphological features: please indicate each of their characteristsics cell shape collar complexmicrovilliflagellumarrow_forwardHow it is possible for sponges to survive without respiratory , digestive , excretory or circulatory system ?arrow_forwardDescribe a potential advantage and disadvantage of the cuticle of ecdysozoans.arrow_forward
- Which statement about sponges is false? Their bodies are supported by silicaceous or calcareous spicules. They feed via flagellated choanocytes. They have cell layers and true organs. Some species live in fresh water. Their bodies have an extracellular matrix composed of collagen and adhesive glycoproteins.arrow_forwardWhat makes sponges (poriferans) different from other animals?arrow_forwardHow are the sponge’s porous body and canal system important for its maintenance functions? What makes sponges different from plants?arrow_forward
- Which of the following structures would be found in the mesohyl of a sponge? amoebocytes and choanocytes amoebocytes and spicules spicules and choạnocytes amoebocytes and polypsarrow_forwardWhat is the way of life of sponges?arrow_forwardFill in the blank to escribe the route of water through an synconoid sponge by listing the numbers in the correct order. To answer - write the numbers with a space in between - e.g. 1 2 3 4 5 6 7 1. osculum 2. spongocoel 3. ostium in porocyte 4. apopyle 5. radial canal 6. prosopyle 7. incurrent canalarrow_forward
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