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Introduction to Helminths: General Characteristics and Life Cycle

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Introduction to Helminths: General Characteristics and Life Cycle

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Questions and Answers

What is the primary function of the tough cuticle/integument in Dioctophyma renale?

To regulate body temperature

To store nutrients

To serve as a flexible covering (correct)

To aid in locomotion

Which characteristic best describes the body covering of nematodes?

Segmented and rigid

Noncellular and highly resistant (correct)

Porous and delicate

Multilayered and colorful

How are adult nematodes classified in terms of sex?

As hermaphroditic organisms

As dioecious with separate sexes (correct)

As asexual organisms

As male-dominant species

What is the main characteristic used for classifying nematodes according to chemoreceptors?

Presence of phasmids (D) Signup and view all the answers

Which part of a nematode's body is usually tapered to a rounded anterior end?

Posterior end (B) Signup and view all the answers

What is the classification based on the presence or absence of larva in a shell called?

Ovoviviparous (A) Signup and view all the answers

Which type of nematodes are categorized as tissue nematodes?

Filariasis-causing nematodes (D) Signup and view all the answers

What is the body symmetry of adult nematodes?

Bilateral symmetry (B) Signup and view all the answers

What is the primary characteristic of nematode bodies?

Elongated, cylindrical, and unsegmented (B) Signup and view all the answers

How is the male nematode typically in comparison to the female?

Smaller in size (D) Signup and view all the answers