Anatomy of Fasciola and Dugesia Quiz

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Where are the six legs of insects located?

Thorax (correct)

Head

Wings

Abdomen

What is the main organ insects use for breathing?

Spiracles

Gills

Tracheae (correct)

Lungs

What is the excretory organ in insects for nitrogenous waste products?

Malpighian tubules (correct)

Glomerulus

Nephrons

Alveoli

Which body part of shrimps and crabs is covered with a chitinous carapace?

Thorax Signup and view all the answers

What is the pointed extension called that shrimps have on their carapace?

Rostrum Signup and view all the answers

Where are the spinnerets located in arachnids?

Abdomen Signup and view all the answers

What is the most peculiar feature of echinoderms mentioned in the text?

Unique water vascular system with tube feet Signup and view all the answers

Which symmetry do adult echinoderms possess?

Radial, pentameric symmetry Signup and view all the answers

What type of symmetry do larval echinoderms have?

Bilateral symmetry Signup and view all the answers

What is the composition of the endoskeleton in echinoderms?

Calcareous plates with spines Signup and view all the answers

Which characteristic distinguishes the echinoderms' endoskeleton?

Calcareous plates with many bumps and spines Signup and view all the answers

What is the network of tubes connected to muscular tube feet in echinoderms called?

Water vascular system Signup and view all the answers

What is the main function of the auricles located on the side of the head?

Sensing odors Signup and view all the answers

Where can the eyespots, sensory receptors of light, be found?

On the side of the head Signup and view all the answers

What is the main function of the proboscis in these organisms?

Food procurement Signup and view all the answers

In which direction is the oral sucker located with respect to the mouth?

Anteriorly Signup and view all the answers

What is the primary function of the ventral sucker or acetabulum found in these organisms?

Anchoring the animal Signup and view all the answers

Which part immediately follows the short pharynx in their digestive system?

Intestinal caeca Signup and view all the answers

Where are the mouth and anus located in sea cucumbers?

Mouth is on the oral side and anus is on the aboral side Signup and view all the answers

What is a distinctive feature of leeches that aids in their movement?

Ventral muscular foot Signup and view all the answers

Do sea cucumbers use the terms oral and aboral surfaces for orientation?

No, they use different terms not mentioned in the text Signup and view all the answers

Which body part in Phylum Mollusca is primarily responsible for locomotion?

Ventral muscular foot Signup and view all the answers

What is a common characteristic of echinoderms in terms of body orientation?

Radial symmetry Signup and view all the answers

What is the function of the pallial cavity in Class Polyplacophora?

Contain gills Signup and view all the answers

Which structure in leeches is responsible for shell secretion in mollusks?

Mantle Signup and view all the answers

Which part of a sea urchin is labeled with spines?

Aboral side Signup and view all the answers

What are the defining characteristics of Phylum Chordata?

Notochord, pharyngeal slits, hollow nerve cord Signup and view all the answers

What is the meaning of 'Polyplacophora'?

Bearer of many plates Signup and view all the answers

What is a common characteristic of annelids and mollusks regarding locomotion?

Relying on a ventral muscular foot Signup and view all the answers