Osculum Study guides, Class notes & Summaries
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Abeka - Biology: God's Living Creation Test 11 (Revised) Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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What group includes snails, slugs, conchs, and nudibrancks? Gastropods 
What sessile animals are characterized by spicules, incurrent pores, an osculum, and no nervous 
system? Sponges 
What molecules make up the cell membrane? Phospholipids 
In what process does a cell engulf a solid particle by surrounding it with the cell membrane? 
Phagocytosis 
Which group of invertebrates are characterized by a muscular foot, a visceral hump, and a 
mantle? Mollusks 
What are the only animals with a water-...
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WSU Biology 106 Exam 3 >> Questions and Answers Updated | 2024
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WSU Biology 106 Exam 3 >> Questions and Answers Updated | 2024 
 
 
 
 
 
Spongocoel	the large central cavity of sponges. 
 
water enters the spongocoel through tiny pores called ostia and it exits through the large opening called the osculum. 
 
spongocoel is lined with choanocytes which help to create a current in the water. 
Spicule	structural elements found in most sponges. They provide structural support and deter predators. 
 
Large ones are called megascleres while microscopic ones...
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Bio 121 - Lab 6 exam (100% correct and graded A+)
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Grantia Characteristics - Eukaryotic 
Heterotrophic 
Multicellular 
Grantia Classification - Domain: Eukarya 
Kingdom: Animalia 
Subkingdom: Parazoa 
Phylum Porifera 
Common Name: Sponge 
Grantia Habitat - -Coastline of the North Atlantic 
-Intertidal regions 
Grantia Energy/Food Source - -Spongocoel - internal cavity lined with flagellated cells - beating of 
flagella draws water, fine organic particles & tiny organisms (bacteria) into the spongocoel through tiny 
pores of the body wall 
-Food ...
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TAMU Biology 112 Lab Practical 2 Exam Questions and Answers 100% Pass
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TAMU Biology 112 Lab Practical 2 Exam 
Questions and Answers 100% Pass 
Phylum Porifera - Answer- No true tissues 
Asymmetrical symmetry 
Taxa: 
-Silicea (glass sponges) 
-Calcarea (rest of sponges) 
Osculum - Answer- Water exit in sponges 
Spicules - Answer- -Skeletal components of sponges made of silica, calcite or spongin 
-Produced by amoebocytes 
Choanocytes - Answer- Spong's filter-feeding cells 
Phylum Cnidaria - Answer- Diploblastic 
Radially symmetrical 
Cnidocytes 
Classes: 
-Anthozoa...
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WSU Biology 106 Exam 3 Questions Marking Scheme
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WSU Biology 106 Exam 3 
Questions Marking 
Scheme 
Spongocoel - ANSWER- the large central cavity of sponges. 
water enters the spongocoel through tiny pores called ostia and it exits through the 
large opening called the osculum. 
spongocoel is lined with choanocytes which help to create a current in the water. 
Spicule - ANSWER- structural elements found in most sponges. They provide structural 
support and deter predators. 
Large ones are called megascleres while microscopic ones are calle...
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Abeka - Biology: God's Living Creation Test 11 (Revised) Already Passed
- Exam (elaborations) • 8 pages • 2024
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Abeka - Biology: God's Living Creation 
Test 11 (Revised) Already Passed 
 
What group includes snails, slugs, conchs, and nudibrancks? Gastropods 
 
What sessile animals are characterized by spicules, incurrent pores, an osculum, and no nervous 
system? Sponges 
 
What molecules make up the cell membrane? Phospholipids 
 
In what process does a cell engulf a solid particle by surrounding it with the cell membrane? 
Phagocytosis 
 
Which group of invertebrates are characterized by a muscular fo...
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Invert zoo lab prac 1 questions and answers
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asconoid sponges - ANSWER-have a simple vase-like structure with a single osculum, 
limited in size because an increase in volume without a corresponding increase in 
surface area of choanocytes ( make up majority of sponges) 
syconoid sponge - ANSWER-Tubular body and a single osculum, the choanocyte layer 
is folded back and forth to make canals 
leuconoid sponges - ANSWER-more complex design, no real atrium, several small 
flagellated chambers instead in which choanocytes are, most adaptive an...
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ABEKA BIOLOGY: GOD'S LIVING CREATION TEST 11 RATED A+
- Exam (elaborations) • 8 pages • 2024
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ABEKA BIOLOGY: GOD'S LIVING 
CREATION TEST 11 RATED A+ 
 
earthworms, sea worms, and leeches segmented worms 
 
planarians, flukes, and tapeworms flatworms 
 
jellyfish, sea anemones, and hydras coelenterates 
 
animals characterized by spiny skin and radial symmetry echinoderms 
 
euglenas, amoebas, and paramecia protozoa 
 
microscopic multicellular invertebrates named for the rotating appearance of the cilia on their 
front ends rotifers 
 
what consists of stacks of flattened, membrane-encl...
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TAMU Biology 112 Lab Practical 2 Exam Questions and Answers 100% Pass
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TAMU Biology 112 Lab Practical 2 Exam 
Questions and Answers 100% Pass 
Phylum Porifera - Answer- No true tissues 
Asymmetrical symmetry 
Taxa: 
-Silicea (glass sponges) 
-Calcarea (rest of sponges) 
Osculum - Answer- Water exit in sponges 
Spicules - Answer- -Skeletal components of sponges made of silica, calcite or spongin 
-Produced by amoebocytes 
Choanocytes - Answer- Spong's filter-feeding cells 
Phylum Cnidaria - Answer- Diploblastic 
Radially symmetrical 
Cnidocytes 
Classes: 
-Anthozoa...
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BIOL2204 Midsemester Exam | 55 Questions with 100% Correct Answers | Verified | Latest Update 2024
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What is the working definition of an animal? - Animals are multicellular eukaryotes that are 
heterotrophic and undergo a blastula stage 
Two problems associated with morphological classification? - 
1. Convergent evolution 
2. Minor mutations 
Why was the organism found in the 90s labelled as a bivalve mollusc? - Because it was consuming 
bivalve eggs and had traces of their DNA in its gut. 
What are some problems with molecular sequencing? - 
1. Differences in mitochondrial and nuclear DNA 
...
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