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UTA Zoology Practical 1 Questions With Complete Solutions

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UTA Zoology Practical 1

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UTA Zoology Practical 1

UTA Zoology Practical 1 Questions With Complete Solutions ________________________________________ .3 layers of Mollusc shell - ANSWER-Nacre - innermost. Calcium carbonate. Prismatic layer - middle. hardest. Periostracum - outermost. .Adductor muscles - ANSWER-used to close bivalve ...

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Uploaded on October 13, 2024
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zoology

Institution UTA Zoology Practical 1
Course UTA Zoology Practical 1

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UTA Zoology Practical 1 Questions With Complete
Solutions

.3 layers of Mollusc shell - ANSWER-Nacre - innermost. Calcium carbonate.

Prismatic layer - middle. hardest.

Periostracum - outermost.

.Adductor muscles - ANSWER-used to close bivalve shell around body

.Adult Clonorchis sinesis - ANSWER-Phylum Platyhelminthes

Class Trematoda

.Amictic females - ANSWER-(rotifers) produce diploid eggs

.Amoebocytes or Archaeocytes - ANSWER-(amoeboid cells) Migrate through sponge's mesophyll.

Carry out intracellular digestion, produce spongin and spicules.

(Stem-cell like... can be any specialized cell)

.Anhydrobiosis - ANSWER-rotifers can dessicate and go long periods without food or water.

.Apopyle - ANSWER-Opening into spongocoel from radial canals in Sycanoid sponges.

.Ascaris dissection (female) - ANSWER-Phylum Nemata

,Class Chromadorea

.Ascaris dissection (male) - ANSWER-Phylum Nemata

Class Chromadorea

.Ascaris male and female - ANSWER-Males have hooked tails

Females are bigger

Phylum Nemata

Class chromodorea

.Asconoid Sponges - ANSWER-Small and simplest sponges.

Canal system formed by Ostia, Spongocoel, and Osculum.

.Atoke - ANSWER-Immature Nereis.

.auricles - ANSWER-(flatworms) contain chemosensory cells and cells for tactile sensation

.Automorphies - ANSWER-Traits/Characters that are only shared with one group and no other group

.Bilateral Symmetry - ANSWER-A shape that has only 1 axis (the sagittal axis) that divides the body into 2
halves (mirror images)

.Bivalve anatomy - ANSWER-

.bivalve ctenidia (slide) - ANSWER-

, .Bivalves Structures - ANSWER-Incurrent/Excurrent Siphon; Suprabranchial chamber; Crystalline style;
Labial palps; Ctenidia; Adductor muscles; umbo.

.Body forms of Cnidarias - ANSWER-Polyp and Medusa

.Chiton - ANSWER-Phylum Mollusca

Class Polyplacophora

8 Plates on the dorsal body. Know Ctenidia, Mouth, Foot, Mantle, Anus & Plates

.Chiton (dorsal) - ANSWER-

.Chiton (ventral) - ANSWER-

.Choanocytes - ANSWER-Flagellated cells with a collar ring of microvilli inside the plasma membrane of
the sponges.

Allow feeding through phagocytosis.

.Circular muscle- - ANSWER-allows earthworm to stretch body

.Clade Clitellata - ANSWER-((Phylum Annelid))

Member posses a clitellum - band of tisue that is used to produce slime tube during reproduction.

Class Oligochaeta- earthworm

Class Hirudinea- leeches

Hermaphroditism, no parapodia

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