Sponges and cnidaria Study guides, Class notes & Summaries
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Bio 1108 - Animal Diversity Questions with Complete Solutions
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Analogies Correct Answer-Characters that can evolve more than once in separate groups by convergent evolution 
 
Homologies Correct Answer-Characters that are similar due to common ancestry 
 
Poriferans Correct Answer-The phylum that is made up of sponges 
 
Cnidarians Correct Answer-The phylum that contains jellyfish and sea anemones 
 
Radial symmetry Correct Answer-Organisms who's bodies have an axis that runs from mouth to base with many planes of symmetry through this axis; usually organi...
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CLEP: Biology Exam 2023 with 100% correct answers
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Porifera - correct answer -the phylum of sponges 
asymmetrical 
ectothermic 
sessile 
 
Cnidaria - correct answer -Phylum of Jelly fish and coral 
exothermic 
radial symmetry 
 
Platyhelminthes - correct answer -Phylum of flatworms 
Bilateral 
parasitic 
hermaphroditic 
 
Nematoda - correct answer -Phylum of roundworms 
 
Annelida - correct answer -phylum of segmented worms: sand worms, earthworms, leeches 
bilateral symmetry 
hermaphrodites 
 
Mollusca - correct answer -(snails, clams, squids...
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Bio 120 Exam QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED
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Bio 120 Exam QUESTIONS WITH DETAILED VERIFIED 
ANSWERS | A+ GRADE ASSURED 
Synapomorphy A shared derived character or trait state that distinguishes a clade from the 
other organisms. 
Analagous Having characteristics that are similar because of convergent evolution, not 
homology. 
Homologous Similarity in characteristics resulting from a shared ancestry. 
Porifera Sponges 
No true tissues 
Mostly marine, aquatic 
Asymmetric 
2 germ layers (endoderm and ectoderm) 
No coelom 
Sessile 
Sessile At...
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Biology 1402 Test 3 Held Latest Version Graded A+
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Biology 1402 Test 3 Held Latest Version 
 
Graded A+ 
 
Larva An early stage in the life cycle of an organism that will undergo complete 
metamorphosis. 
 
Metamorphosis A marked change in form, character, or function; a transformation 
 
Invertebrate An animal without a backbone 
 
Vertebrate An animal with a backbone 
 
Bilateral symmetry Body plan in which only a single, imaginary line can divide the body into 
two equal halves. 
 
Coelom Body cavity 
 
Cephalization concentration of sense or...
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BIO 172 UH Manoa Exam 2 Latest Update Graded A+
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BIO 172 UH Manoa Exam 2 Latest 
 
Update Graded A+ 
 
Animals Multicellular eukaryotes 
Heterotrophs: Ingest their food 
Lack Cell Walls 
Body held together by structural proteins 
 
Collagen Make up connective tissues (fibers) 
Flexible and high tensile (stretching) 
 
Skin Dense irregular arrangement of collagen 
 
Ligament Collagen arranged in sheets 
(Connects Bones) 
 
Tendon Cable-like arrangement of collagen 
(Connects muscle to bone) 
 
Zygote Fertilized egg 
(Sperm+Egg=Zygote) 
Undergoe...
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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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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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Bio 120 - Exam 1 Questions with Correct Answers Graded A+
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Bio 120 - Exam 1 Questions with 
Correct Answers Graded A+ 
Synapomorphy A shared derived character or trait state that distinguishes a clade from the 
other organisms. 
Analagous Having characteristics that are similar because of convergent evolution, not 
homology. 
Homologous Similarity in characteristics resulting from a shared ancestry. 
Porifera Sponges 
No true tissues 
Mostly marine, aquatic 
Asymmetric 
2 germ layers (endoderm and ectoderm) 
No coelom 
Sessile 
Sessile Attached direc...
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BIO 101 FINAL Exam Questions and Answers With 100% Correct Solutions 2024 Graded A+ STRAIGHTERLINE
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BIO 101 FINAL Exam Questions and Answers With 100% Correct Solutions 2024 Graded A+ STRAIGHTERLINE. which cofactor is involved in the Calvin cycle reactions? NADP+ 
segments of DNA that are not part of the gene are called introns 
which of the following is not true of ribosomes they bind only one type of amino acid 
which part of an operon is incorrectly matched with its function? regulator--binds to the repressor 
protein 
cells of the ground tissue system are called parenchyma, collenchyma, an...
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Bio 1402 Chapter 33 Questions and Answers Rated A+
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Bio 1402 Chapter 33 Questions and 
 
Answers Rated A+ 
 
Schistosomiasis is a serious disorder afflicting humans mainly in tropical regions; it is caused by 
a fluke. 
 
The long, flat bodies of tapeworms are made up of repeating segments known as proglottids. 
 
Which of the following is not true about beef tapeworms? more than 10% of the cattle are 
infected in the United States 
 
Which of the following is not true about pseudocoelomates? They contain a bony skeleton. 
 
Which of the followin...
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