Spongin fibers Study guides, Class notes & Summaries
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Biology Lab 1106 Baylor University Exam 3 QUESTIONS AND VERIFIED ANSWERS 2023.
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Biology Lab 1106 Baylor 
University Exam 3 
QUESTIONS AND VERIFIED 
ANSWERS 2023. 
1. Phylum Porifera (sponges): asymmetrical 
lack true tissues 
have unique cells called CHOANOCYTES (flagellated cells that will draw in water 
and filter food particles) 
Genus: Grantia, Spongia, Euplectella 
2. Phylum Porifera 
Genus Grantia: isolated spicules 
walls of sponges contain amoebocytes and crystallized structures called spicules 
incurrent canals and flagellated canals 
3. Phylum Porifera 
Genus Spon...
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Biology Lab 1106 Baylor University Exam 3 with 100% correct answers
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Phylum Porifera (sponges) 
asymmetrical 
lack true tissues 
have unique cells called CHOANOCYTES (flagellated cells that will draw in water and filter food particles) 
 
Genus: Grantia, Spongia, Euplectella 
 
 
 
Phylum Porifera 
Genus Grantia 
isolated spicules 
walls of sponges contain amoebocytes and crystallized structures called spicules 
incurrent canals and flagellated canals 
 
 
 
 
 
 
00:00 
 
01:22 
Phylum Porifera 
Genus Spongia 
have spongin fibers that are more flexible 
live spe...
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BROOKS BIODIVERSITY UNIT 3 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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1 
BROOKS BIODIVERSITY UNIT 3 EXAM | 
QUESTIONS & ANSWERS (VERIFIED) | 
LATEST UPDATE | GRADED A+ 
Plants Architecture 
Correct Answer: Plant needs 
i. collection & conversion of solar energy -> leaves 
ii. positioning & support of leaves -> stems 
iii. anchorage & absorption -> roots 
iv. transport -> vascular system 
Leaf Structure 
Correct Answer: Epidermis, Mesophyll, and Vein (Vascular Bundle) 
Epidermis contains what? 
Correct Answer: - Cuticle 
- Guard cells with Stomata 
...
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BIO 207
- Class notes • 69 pages • 2022
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NATIONAL OPEN UNIVERSITY OF NIGERIA 
 
 
 
 
 
COURSE CODE : BIO 207 
 
 
 
 
 
 
COURSE TITLE: LOWER INVERTEBRATES 
	Course Code & Course Title: 	 	 	 	BIO 207: Lower Invertebrates 
 
Course Writer: 	 	 	 	 	 	Dr. Patrick A. Audu 
 
Course Editor 
 
 
 
Programme Leader 	 	 	 	 	Dr. Ado Baba Ahmed 	 
 	 	 	 	 	 	 	 	National Open University of 
 	 	 	 	 	 	 	 	Nigeria, Lagos 
 
 
Course Coordinator 	 	 	 	 	Mr. Adams, Abiodun E 	 	 	 	 	 	 	 	National Open Univers...
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5. Fill in the table Characteristics of the Classes of Sponges Chara
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5. Fill in the table: Characteristics of the Classes of Sponges Characteristic Common name(s) 
Spicule composition Type of canal system Habitat Representative genus Calcarea Hexactinellida 
Demospongia 
 
Solution 
 
Characteristics of the classes of sponges. 
Calcarea 
Rhagon Type 
Calcispongiae 
Triaxonida or HyalospongiaeCharacteristics 
CalcareaHexactinellidaDemospongiaCommon namecalcareous spongesGlass spongesPeople 
spongesSpicule compositionCalcium carbonate in the form of calcite or ar...
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Biology midterm 2 exam 2024
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The cells that move throughout the sponges body wall to deliver food to the organisms cell 
is what? - Amoebocytes Skeletal support in sponges may be provided by what? - Spicules 
of calcium carbonate Spicules of silicon dioxide Fibers called spongin Many cnidarians 
have two distinct body forms/stages called what? - Polyp and medusa Anthozoans include 
what? - Sea anemones and corals Adult sponges have what? - Body walls with many pores 
Hermaphroditic organisms do what? - Produce egg and ...
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Porifera & Ctenophora [PHYLUM] – CH6 & 8
- Class notes • 4 pages • 2020
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This chapter summarizes the Porifera & Ctenophora. It includes but isn't limited to their respective main characteristics, a description of their synapomorphy, & general anatomy.
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