Read the statements below:
Statement 1: Cyclostomes are jawless vertebrates (mouth not bounded by jaws).
Statement 2: They are endoparasites of fishes.
Q: Which of the above statements is/are true?

Both Statement 1 and Statement 2 are false.

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Only Statement 2 is true.

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Both Statement 1 and Statement 2 are true.

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Only Statement 1 is true.

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Solution

The correct option is D
Only Statement 1 is true.

Cyclostomes are jawless vertebrates (mouth not bounded by jaws). Body is elongated and eel like.

They have circular mouth. Skin is slimy and scaleless.

They are ectoparasites of fishes.

Example: Hagfish.

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Similar questions

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ii. Morphological and anatomical features in endoparasites are simplified while emphasising their reproductive potential.

iii. Liver fluke and Plasmodium are some common examples of ectoparasites.

iv. Many marine fishes are infested with ectoparasitic copepods.

How many statements are incorrect about the parasites?

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Read the statements below: Statement 1: Cyclostomes are jawless vertebrates (mouth not bounded by jaws). Statement 2: They are endoparasites of fishes. Q: Which of the above statements is/are true?

The correct option is D Only Statement 1 is true. Cyclostomes are jawless vertebrates (mouth not bounded by jaws). Body is elongated and eel like. They have circular mouth. Skin is slimy and scaleless. They are ectoparasites of fishes. Example: Hagfish.

Read the statements below:
Statement 1: Cyclostomes are jawless vertebrates (mouth not bounded by jaws).
Statement 2: They are endoparasites of fishes.
Q: Which of the above statements is/are true?

The correct option is D
Only Statement 1 is true.

Cyclostomes are jawless vertebrates (mouth not bounded by jaws). Body is elongated and eel like.

They have circular mouth. Skin is slimy and scaleless.

They are ectoparasites of fishes.

Example: Hagfish.