Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 24.3, Problem 1TC
Summary Introduction
To discuss:
The diversity and abundance of the sponges even if they are the most “primitive” of animals.
Introduction:
The members of phylum Porifera are the earliest animals to be known. The members live in aquatic habitats, in which they predominate in ocean water bodies. There are approximately
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The distinction between sponges and other animal phyla is based mainly on the absence versus the presence of (A) a body cavity. (B) a complete digestive tract. (C) mesoderm. (D) tissues.
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Chapter 24 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 24.1 - Can you... list the characteristics that...Ch. 24.2 - Prob. 1CYLCh. 24.2 - describe the different types of body symmetry,...Ch. 24.2 - give examples of animal groups with each type of...Ch. 24.2 - Prob. 4CYLCh. 24.3 - Prob. 1TCCh. 24.3 - Prob. 2TCCh. 24.3 - Prob. 3TCCh. 24.3 - What advantage does a digestive system with two...Ch. 24.3 - Why does pouring sail on a leech harm it?
Ch. 24.3 - Prob. 6TCCh. 24.3 - Prob. 7TCCh. 24.3 - If you have ever accidentally walked into a spider...Ch. 24.3 - Prob. 1CYLCh. 24.3 - list some member organisms in each of these...Ch. 24.3 - Prob. 3CYLCh. 24.3 - Physicians Assistants Another invertebrate animal...Ch. 24 - Prob. 1MCCh. 24 - Prob. 2MCCh. 24 - Prob. 3MCCh. 24 - Prob. 4MCCh. 24 - Prob. 5MCCh. 24 - __________ Animals obtain energy by __________;...Ch. 24 - Bilaterally symmetrical animals have __________...Ch. 24 - Animals that have an anterior and posterior end...Ch. 24 - Lophotrochozoans and ecdysozoans (molting animals)...Ch. 24 - Prob. 5FIBCh. 24 - Three major groups within the mollusks are the...Ch. 24 - Prob. 7FIBCh. 24 - For each of the following distinctive structures,...Ch. 24 - Prob. 1RQCh. 24 - Prob. 2RQCh. 24 - Briefly describe each of the following...Ch. 24 - Prob. 4RQCh. 24 - Prob. 5RQCh. 24 - Prob. 6RQCh. 24 - Prob. 7RQCh. 24 - Prob. 8RQCh. 24 - Insects are the largest group of animals on Earth....Ch. 24 - Prob. 2AC
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- What are the features of sponges ( Phylum Porifera) and can they be classified as being apart of the animal kingdom ?arrow_forwardWhat makes sponges (poriferans) different from other animals?arrow_forwardSponges (Phylum Porifera) are the basal taxon to animals and were once thought to belong to plants. 1) Identify three characteristics that distinguish sponges from plants. 2) Identify three characteristics (present or absent) that distinguish sponges from other animal taxa.arrow_forward
- Why do sponges fit the definition of animals?arrow_forwardWhat are the Advancements of sponges? New anatomical, developmental or behavioral features compared to the previous phylumarrow_forwardWhich 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_forward
- Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. Vertebrataarrow_forwardFlatworms have no coelom. Recent gene sequencing shows that their closest relatives are the rotifers and gastrotrichs (which are pseudocoelomate), the bryozoans (which are coelomate), and the entoprocts (which are acoelomate). Which of the following is a legitimate conclusion? Flatworms, rotifers, and gastrotrichs form a monophyletic group. Flatworms and bryozoans form a monophyletic group. Flatworms and entoprocts form a monophyletic group. Bryozoans, rotifers, and gastrotrichs form a monophyletic group. There must be flaws in the gene sequence analyses.arrow_forwardClass Gastropoda and Class Bivalvia independently evolved modifications to their body plan that allowed them to invade sandy and muddy habitats, burying their bodies under the surface and accessing the surface via siphons. For an example organism in each Class, (1) draw a diagram showing the morphological modifications and (2) write a description of how this organism had evolved from the hypothetical ancestral mollusk (HAM) body plan.arrow_forward
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