Gastrulation Study guides, Class notes & Summaries
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Bio 172 animals exam questions with verified answers
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Bio 172 animals exam questions with 
 
verified answers 
 
Which of the following is (are) unique to animals? 
 
A) the structural carbohydrate, chitin 
B) nervous and muscular tissue 
C) heterotrophy 
D) gametes B) nervous and muscular tissue 
 
What do all deuterostomes have in common? 
A) Adults are bilaterally symmetrical. 
B) Embryos have pharyngeal pouches that may or may not form gill slits. 
C) All have a spinal column. 
D) The pore (blastopore) formed during gastrulation becomes the anu...
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bio 116 exam 4 | questions and answers 2023/24
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bio 116 exam 4 | questions and answers 2023/24 
 
In animal development, which of the following best describes the process of cleavage? - Mitosis 
What are the cells created by cleavage called? - Blastomeres 
Which of the following are the three germ layers contained in the gastrula? - Ectoderm, mesoderm, endoderm 
Which of the following stages of development is defined by the three embryonic tissue layers (ectoderm, mesoderm, and endoderm)? - Gastrula 
What happens to a cell during the ...
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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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Developmental biology BVETMED1 (D100) Lecture notes
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INTRODUCTION TO DEVELOPMENTAL BIOLOGY	2 
GASTRULATION	3 
MAJOR EARLY EVENTS 1	5 
MAJOR EARLY EVENTS 2	7 
DEVELOPMENT AND EVOLUTION	9 
CELL DIVISION AND DIFFERENTIATION	11
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WIS2552 EXAM 1 UF 2024|| with Complete Solutions.
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The === are passerine birds that forage by impaling small animals on thorns correct answers Shrikes 
 
=== are species that are related to terns that feed by flying low with their lower mandible in the water correct answers Skimmers 
 
There are ___ native species of crows and jays in New Zealand correct answers 0 
 
In the American Southwest as many as ____ Hummingbird species are known to occur. correct answers 17 
 
The Desert biome lies about ___ degrees north and south of the equator. corre...
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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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Embryology USMLE Step 1 Quiz with complete solutions | Latest 2023/2024
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Embryology USMLE Step 1 Quiz with complete solutions | Latest 2023/2024 
where is sonic hedgehog gene produced? what axis is it responsible in patterning? -- 
base of limbs in the zone of polarizing activity; ant-post 
what gene is produced in the zone of polarizing activity? -- Sonic Hedgehog 
where is Wnt 7 gene produced? -- apical ectodermal ridge 
where is the apical ectodermal ridge? -- thickened ectoderm at end of each developing 
limb 
what axis is Wnt 7 responsible for developing? -- dor...
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Bio 117 exam 2 quiz all answers correct
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Bio 117 exam 2 quiz all answers correct 
Which of the following is NOT a characteristic of ALL animals? 
A. 
Heterotrophic 
B. 
Together, they form a monophyletic group. 
C. 
Multicellular organisms 
D. 
Cells lacking cell walls. 
E. 
All animals have true tissues and organs. ️All animals have true tissues and organs. 
Which of the following are characteristics of Phylum Cnidaria? (Select All that Apply) 
A. 
Specialized stinging cells 
B. 
True Tissues 
C. 
Complete ...
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MY BIOL 204 EMBRYOLOGY DEVELOPMENT TEST QUESTIONS AND ANSWERS
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comparative morphology 
looking at anatomical characters (for example eyes, lungs, bones, etc) and seeing what is shared and what differs 
 
 
 
in what ways can anatomical characters differ? 
1) function 
2) form 
3) genetic aspects (evolutionary history) 
 
 
 
 
homologous structures 
structures that share a common ancestry (ex: forelimbs in tetrapods) 
 
 
 
analogous structures 
structures that share a similar (and precise) function (ex: bat wings + bird wings, woodpecker tongue + aye aye f...
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ANAT0001: Introduction to Anatomy and Development (A+ Guaranteed) 2024.
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what is oviparity? correct answers eggs are laid, with little or no embryonic development in the mother with either internal/external fertilisation 
- found in invertebrates, fish amphibians, reptiles, birts and monotreme animals 
 
what is ovoviviparity? correct answers eggs retained in mother's body until ready to hatch, with internal fertilisation and young are born lice 
- no placental connection to mother 
- found in invertebrates, fish, amphibians and reptiles 
 
what is viviparity? corre...
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