Invertebrate Biology Lecture 1 Quiz
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Questions and Answers

What is the difference in development fate between Protostomes and Deuterostomes?

Protostomes show determinate development, while Deuterostomes show indeterminate development.

What are some characteristics of Phylum Mollusca?

Highly diverse group of animals, some members have no sense organs or brains, other members have highly advanced features.

What is the main difference between Protostomia and Deuterostomia in terms of blastopore development?

In Protostomia, the blastopore forms the mouth, while in Deuterostomia, the blastopore forms the anus.

What is the significance of coelom formation in Deuterostomes?

<p>In Deuterostomes, coelomate animals have the anus develop from the first opening in the embryo (Blastopore) and the mouth develops later.</p> Signup and view all the answers

What is the difference between Trochophore and Tornaria in terms of development?

<p>Trochophore is common larval form in Mollusca, while Tornaria is the larval form of some echinoderms.</p> Signup and view all the answers

What is the role of Dr. Ahmed Soffar in the context of the text?

<p>Dr. Ahmed Soffar is the Assistant Professor of Molecular Biology.</p> Signup and view all the answers

What is the function of the radula in an octopus?

<p>Feeding</p> Signup and view all the answers

What is the primary body cavity in an octopus?

<p>Haemocoel</p> Signup and view all the answers

What is the respiratory pigment in octopuses?

<p>Haemocyanin</p> Signup and view all the answers

What is the shell lined by in octopuses?

<p>Mantle</p> Signup and view all the answers

What is the body cavity reduced to in octopuses?

<p>GONOCOEL</p> Signup and view all the answers

What is the function of the mantle cavity in octopuses?

<p>Gas exchange</p> Signup and view all the answers

What are the classes of mollusks?

<p>Aplacophora, Monoplacophora, Polyplacophora, Scaphopoda, Gastropoda, Bivalvia, Cephalopoda</p> Signup and view all the answers

What type of symmetry do octopuses exhibit?

<p>Bilateral symmetry</p> Signup and view all the answers

What kind of excretory system do octopuses have?

<p>Metanephridia</p> Signup and view all the answers

Where is the dorsal heart located in octopuses?

<p>Pericardial cavity</p> Signup and view all the answers

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