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Phylum Mollusca Lecture 9: Marine Ecology

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Phylum Mollusca Lecture 9: Marine Ecology

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Questions and Answers

What is the main focus of Phylum Mollusca?

Forming an important part of the ecosystem (correct)

Living in terrestrial regions

Producing pearls

Being covered by a hard exoskeleton

Which of the following animals belongs to Phylum Mollusca?

Octopus (correct)

Butterfly

Crocodile

Lion

What distinguishes many organisms belonging to Phylum Mollusca?

Living only in terrestrial regions

Having a hard exoskeleton

Being covered by feathers

Having a calciferous shell (correct)

In what regions can organisms belonging to Phylum Mollusca be found?

Both in terrestrial regions and in the depths of the seas Signup and view all the answers

What is a notable characteristic of Molluscs with shells?

Producing pearls Signup and view all the answers

What is an additional use of some Molluscs aside from being part of the ecosystem?

Being eaten by humans in different regions of the world Signup and view all the answers

What is the size range of molluscan animals?

1 millimetre to 20 metres Signup and view all the answers

Which of the following is NOT a class of extant mollusks?

Oligoplacophora Signup and view all the answers

What is the function of a radula in molluscan animals?

Feeding Signup and view all the answers

What is the organ system grade of organization exhibited by molluscs?

Organ system level Signup and view all the answers

What is the primary source of pearls obtained from molluscs?

From the mantle and shell Signup and view all the answers

In which habitats can molluscan animals be found?

Both aquatic and terrestrial Signup and view all the answers

What is the role of bivalve mollusks as bioindicators?

Indicate pollution levels in water bodies Signup and view all the answers

What is the purpose of a haemocoel in molluscan animals?

Blood circulation Signup and view all the answers

How do natural pearls form in molluscs?

Small foreign object gets stuck between mantle and shell Signup and view all the answers

Phylum Mollusca Lecture 9: Marine Ecology

Choose a study mode

Podcast

Questions and Answers

What is the main focus of Phylum Mollusca?

Which of the following animals belongs to Phylum Mollusca?

What distinguishes many organisms belonging to Phylum Mollusca?

In what regions can organisms belonging to Phylum Mollusca be found?

What is a notable characteristic of Molluscs with shells?

What is an additional use of some Molluscs aside from being part of the ecosystem?

What is the size range of molluscan animals?

Which of the following is NOT a class of extant mollusks?

What is the function of a radula in molluscan animals?

What is the organ system grade of organization exhibited by molluscs?

What is the primary source of pearls obtained from molluscs?

In which habitats can molluscan animals be found?

What is the role of bivalve mollusks as bioindicators?

What is the purpose of a haemocoel in molluscan animals?

How do natural pearls form in molluscs?

Which class of molluscs includes snails?

What is the function of ctenidia in molluscan animals?

What type of circulatory system do molluscan animals possess?

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