Diploblastic - Study guides, Class notes & Summaries
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Life 103 Final Exam CSU (exam 1-3)Graded A Q&A Complete
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Classification of organisms according to evolutionary relationships. - Answer-Phylogeny 
Evolutionary classification - Answer-Taxonomy 
Domain> Kingdom> Phylum> Class> Order> Family> Genus> Species 
(Did King Phillip Come Over For Grandma's Soup) 
[ex. Homo sapien](italicized) - Answer-Linnaean system of classification (taxonomy) 
Basal Group: Branch from oldest common ancestor, no other branch from species. 
Sister Taxa: Share common ancestor - Answer-Phylogeny relationshi...
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BIO 1030 Midterm Practice Questions with Correct Answers
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Heterotrophic Protists? Are a paraphyletic grouping of organisms 
Which combinations of phylum and description are correct? -Echinodermata: bilateral symmetrical larvae and pentaradially symmetrical adult -Nematoda: pseudocoelomates with both parasitic and free living representatives -Cnidaria: radially symmetrical with cnidocytes -Platyhelminthes: parasitic and free-living acoelomates 
Which characteristics are found in all chordates: -notochord: structural support, skeleton, -dorsal, hollow ne...
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TAMU BIOLOGY 112 EXAM #3 Questions and Answers 100% Pass
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TAMU BIOLOGY 112 EXAM #3 
Questions and Answers 100% Pass 
Select the TRUE statement about animal development: 
A.) Deuterostome development is indeterminate. 
B.) Mesoderm in protostomes arises as outpocketings of the primitive gut. 
C.) Radial cleavage is characteristic of protostome development. 
D) In deuterostomes, the blastopore ultimately becomes the mouth of the adult. 
E) All of the above are true. - Answer- Deuterostome development is indeterminate. 
During embryogenesis of diploblasti...
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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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ZOL1501 Exam Revision [2]
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ZOL1501 Exam Revision [2] 
Choose the correct answer by choosing the number corresponding to the answer 
you have chosen. 
1. Specialized archaeocytes that secrete spongin are called ___________. 
1. collencytes 
2. sclerocytes 
3. choanocytes 
4. spongocytes 
5. lophocytes 
2. Which species of the genus Schistosoma is found in the veins of the large 
intestine of the human being __________. 
1. S. mansoni 
2. S. japonicum 
3. S. haematobium 
4. S. plumula 
5. S. hepati...
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USABO Biosystematics Test with Complete Solutions
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USABO Biosystematics Test with Complete Solutions 
Calcarea, Silicea (sponges) - Answer-Lack true tissues; have choanocytes (collar cells-flagellated cells that ingest bacteria and tiny food particles) 
 
Cnidaria (hydras, jellies, sea anemones, corals) - Answer-Unique stinging structures (nematocysts) housed in special cells (cnidocytes); diploblastic, radially symmetrical, gastrovascular cavity 
 
Plathyhelminthes - Answer-Dorsoventrally flattened, unsegmented acoelomates; gastrovascular cavit...
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Biology 1108 Exam 3 Questions and Answers (Latest Update) 120 Questions | Graded A+
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Biology 1108 Exam 3 Questions and Answers (Latest Update) 120 Questions | Graded A+. Alpine - Correct Answers Similar to Tundra, Lacks permafrost, 
Budding - Correct Answers Form of asexual reproduction in which a 
bud/protrusion forms on an organism and eventually breaks off to form a 
new organism that is smaller than its parent. 
Fragmentation - Correct Answers A type of asexual reproduction in which 
one organism is broken into pieces, each of which develops into a new 
individual 
Partheno...
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BIO 205 Actual final Exam Practice Questions with Approved Marking Scheme 2024
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BIO 205 Actual final Exam Practice Questions with Approved Marking Scheme 2024 
What type of development takes place in sponges in internal fertilization? - correct answer amphiblastula larva 
 
Asexual reproduction in sponges - correct answer fragmentation, budding, gemmules (archeocytes gather in the mesophyll and each archeocyte undergoes mitosis which is then surrounded by trophocytes. The archeocytes egult the trophocytes and then are surrounded by tough spongin. They have micropyle. 
 
Wha...
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Marine Zoology #1
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Characteristics of an Animal - Answer- heterotroph (eat other organisms for food), multicellular (no cell wall, eukaryotic), motility/movement, *neurons/muscle cells (except sponges) 
 
Surface Area to Volume Ratio - Answer- limits the size of cells, as surface area increases volume decreases 
 
Importance of Surface Area - Answer- determines rate at which nutrients diffuse across a membrane into a cell and rate at which waste products diffuse out of cells 
 
Techniques Animals use to Increase S...
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BIOL 181 EXAM 3 QUIZ 2024 A + graded 100% verified
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BIOL 181 EXAM 3 QUIZ 2024 A + graded 
100% verified 
Diploblastic - answerhaving two germ layers; ectoderm and endoderm 
Triploblastic - answerhas three germ layers: the ectoderm, endoderm, and mesoderm. 
spiral vs radial cleavage - answerIn spiral cleavage, the division planes are not at 90 degree 
angles, resulting in blastomeres that are not aligned directly over or beside one another. Radial 
Cleavage: occurs such that the resulting daughter cells are located exactly on top of one another. 
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