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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