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Chapter 25: Worms and Mollusks Test

Create an educational illustration of various types of worms and mollusks, showcasing their anatomical features and habitats in a vibrant underwater scene.

Worms and Mollusks Quiz

Test your knowledge on the fascinating world of worms and mollusks! This quiz will challenge you on various aspects of these invertebrates, including their anatomy, physiology, and evolutionary characteristics.

Whether you are a student, teacher, or simply a fan of biology, this quiz is designed for everyone who wants to enhance their understanding of these intriguing creatures.

Multiple choice and checkbox questions
Focus on key concepts and similarities
Engaging and informative

15 Questions4 MinutesCreated by ExploringOcean72

Which of these statements is true regarding flatworms and roundworms?

They both have bilateral symmetry.

They both are pseudocoelomates.

They both are coelomates

They both have radial symmetry

Flatworms feed by extending an organ called a ____ from their mouths.

Ganglia

Pharynx

Tubule

Flame cell

Which of these features is a similarity between flatworms and cnidarians?

Both utilize flame cells

Both have excretory system

Both lack a circulatory and respiratory system

Both have circulatory and respiratory system

What term describes the pseudocoelom providing rigid support for muscles to work against?

Hydrostatic skeleton

Trichinosis

Gastropod

Mantle

How are rotifers different from roundworms?

They move through water.

They have bilateral symmetry.

They are pseudocoelomates.

They evolved from an ancestral protist.

What comparison can be made between roundworms and flatworms, based on this evolutionary tree?

Both have bilateral symmetry.

Only flatworms evolved from an ancestral protist.

Both are pseudocoelomates.

Both have radial symmetry.

Why is the roundworm C. Elegans useful for scientific research?

Does not contain DNA bases

Large number of cells and long zygote maturation

Small number of cells and short zygote maturation

DNA does not encode genes

The ____ is a membrane that surrounds the internal organs of the mollusk.

Ascarid

Radula

Siphon

Mantle

The ____ is a tonguelike organ with rows of teeth for obtaining food.

Mantle

Radula

Internal shell

Gill

What is the purpose of this mollusk adaptation?

Light-reception

Protection

Feeding

Digging

Why is an open circulatory system suitable for many mollusks?

Slow moving animals need rapid intake of oxygen.

Slow moving animals do not need rapid intake of oxygen.

This system allows oxygen intake through the shell.

This system prevents oxygen loss through the shell.

What can be concluded about annelids based on this evolutionary tree?

Lack segmentation and have coeloms

Lack coeloms and protostome development

Have coeloms and are segmented

Are segmented and closely related to cnidarians

What is the name and function of the hair-like projections in this earthworm cross section?

Satae; aids in respiration

Gizzard; secretes lubricant

Crops; protects from predators

Satae; provide anchor for pushing through soil

What do these cladograms represent?

Interpretations of possible mollusk and annelid evolutions

Structural features of present-day mollusks and annelids

Theory that mollusks and annelids have no evolutionary differences

Food chain for mollusks and annelids

Which of the following is true of annelid segments?

Only individual segments can have special functions.

Groups of segments can adapt to particular functions.

Segments can function in locomotion but not excretion.

The main function of segments is respiration.

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