Pick the mismatched pair for birds:

A. Urinary bladder – producing semisolid urine

B. Crop – temporary food storage

D. Air sacs – aiding in respiration

Tail can be regenerated in ?

C. Both lizard and larvae of amphibian

Everyday Science · Zoology & Animal Kingdom · page 30 of 46

Classes of Animals MCQs with Answers

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Classes of Animals MCQs (291–300)

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Past paper MCQs in this chapter · See all past papers

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291.
The major nitrogenous waste of annelids is ?
Correct Answer: C. Ammonia
One-liner
The major nitrogenous waste of annelids is ammonia, making them ammonotelic organisms.
292.
Pick the mismatched pair for birds:
Correct Answer: A. Urinary bladder – producing semisolid urine
One-liner
Birds lack a urinary bladder; they excrete semisolid uric acid (white paste) directly with feces to conserve water and reduce body weight for flight.
293.
These all extinct forms, from Mesozoic to Cretaceous with exception of ?
Correct Answer: C. Chrysms
One-liner
Chrysms are the exception among the listed extinct forms that lived from the Mesozoic to the Cretaceous period, as Chrysms is not a recognized extinct fossil group from that era.
294.
The scientific name of Silver carp is _?
Correct Answer: D. Hypothalmicthys molitrix
One-liner
The scientific name of Silver carp is Hypothalmicthys molitrix.
295.
Which group increased in size and exploited vacated ecological niches in the Cenozoic era?
Correct Answer: C. Mammals
One-liner
Mammals increased in size and exploited vacated ecological niches during the Cenozoic era.
296.
Tail can be regenerated in ?
Correct Answer: C. Both lizard and larvae of amphibian
One-liner
Tail can be regenerated in both lizard and larvae of amphibian.
297.
Salmo fario is _?
Correct Answer: A. Brown Trout
One-liner
Salmo fario is the scientific name for Brown Trout.
298.
Vertebrates made the transition to land around million years ago.
Correct Answer: A. 360
One-liner
Vertebrates made the transition from water to land around 360 million years ago, during the late Devonian period.
299.
Which of the following is a characteristic of horny structures that do not shed off?
Correct Answer: A. Horns of cattle
One-liner
Horns of cattle are horny structures that are permanent and do not shed off, unlike antlers which are shed annually.
300.
The mode of movement in zooflagellates is ?
Correct Answer: B. Flagella
One-liner
The mode of movement in zooflagellates is flagella.

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Classes of Animals MCQs with Answers

Classes of Animals MCQs (291–300)

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