12th Grade > Biology
ANIMAL KINGDOM MCQs
Total Questions : 53
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Answer: Option B. -> Ciliated comb plates
:
B
Both cnidarians and ctenophores exhibit tissue level of organisation, and are also diploblastic. Cnidocytes or stinging cells are found only in cnidarians, while ctenophores possess unique ciliated comb plates which help in locomotion.
:
B
Both cnidarians and ctenophores exhibit tissue level of organisation, and are also diploblastic. Cnidocytes or stinging cells are found only in cnidarians, while ctenophores possess unique ciliated comb plates which help in locomotion.
Answer: Option B. -> Echinodermata
:
B
Water vascular system, also called ambulacral system is a characteristic feature of Phylum Echinodermata. Itserves for locomotion, respiration and food capture.It basicallyconsists of a system of canals and reservoirs containing a watery fluid, the system consisting of a sieve plate, or madreporite, and a ring vessel, or water-vascular ring, that are connected by a frequently calcified vessel called the stone canal. Five radial water canals extend outward from the ring vessel and give rise to branches that end in the tube feet, which are in contact with the sea. It is specifically the tube feet thatare used to pass food to the oral mouth at the center, and can attach to surfaces.
:
B
Water vascular system, also called ambulacral system is a characteristic feature of Phylum Echinodermata. Itserves for locomotion, respiration and food capture.It basicallyconsists of a system of canals and reservoirs containing a watery fluid, the system consisting of a sieve plate, or madreporite, and a ring vessel, or water-vascular ring, that are connected by a frequently calcified vessel called the stone canal. Five radial water canals extend outward from the ring vessel and give rise to branches that end in the tube feet, which are in contact with the sea. It is specifically the tube feet thatare used to pass food to the oral mouth at the center, and can attach to surfaces.
Answer: Option A. -> Notochord
:
A
Vertebrata is a sub-phylum under Phylum Chordata in which, animals possess a notochord during embryonic development, which gets replaced by the vertebral column in the adult.
:
A
Vertebrata is a sub-phylum under Phylum Chordata in which, animals possess a notochord during embryonic development, which gets replaced by the vertebral column in the adult.
Answer: Option B. -> Porifera
:
B
Phylum Porifera includes the sponges, which are exclusively aquatic, sessile, and exhibit cellular level of organisation of body matter. It is also the only phylum that comes under sub-kingdom Parazoa in the Animal Kingdom.
:
B
Phylum Porifera includes the sponges, which are exclusively aquatic, sessile, and exhibit cellular level of organisation of body matter. It is also the only phylum that comes under sub-kingdom Parazoa in the Animal Kingdom.
Answer: Option A. -> Nereis
:
A
Aquatic annelids like Nereispossess lateral appendages called parapodia, which help in swimming. Pheretima(earthworm) uses setae for locomotion. Hirudinaria(leech) uses its suckers for attachment to the host, but has no parapodia or setae.
:
A
Aquatic annelids like Nereispossess lateral appendages called parapodia, which help in swimming. Pheretima(earthworm) uses setae for locomotion. Hirudinaria(leech) uses its suckers for attachment to the host, but has no parapodia or setae.
Answer: Option C. -> Mollusca – chitinous shell
:
C
The body of sponges is supported by spicules or spongin fibres. Ctenophores (comb jellies) exhibit bioluminescence, which is a property by which the organisms can emit light. Annelids possess structures called nephridia which help in excretion. Members belonging to Phylum Mollusca do possess a hard exoskeleton, but it is made up of calcium carbonate and not chitin. Chitinous exoskeleton is characteristic of arthropods.
:
C
The body of sponges is supported by spicules or spongin fibres. Ctenophores (comb jellies) exhibit bioluminescence, which is a property by which the organisms can emit light. Annelids possess structures called nephridia which help in excretion. Members belonging to Phylum Mollusca do possess a hard exoskeleton, but it is made up of calcium carbonate and not chitin. Chitinous exoskeleton is characteristic of arthropods.
Answer: Option C. -> Annelida and Arthropoda
:
C
Metamerism or segmentation is the phenomenon of having a linear series of body segmentsfundamentally similar in structure. The individual segments are known as metameres. However, not all these segments are entirely alike in any single life form because some of them perform special functions. Metameric segmentation can be distinctly seen in Annelida (e.g., earthworm) and Arthropoda (e.g., cockroach, prawn etc.). Most chordates too, exhibit segmentation at some point duringtheir life history.
:
C
Metamerism or segmentation is the phenomenon of having a linear series of body segmentsfundamentally similar in structure. The individual segments are known as metameres. However, not all these segments are entirely alike in any single life form because some of them perform special functions. Metameric segmentation can be distinctly seen in Annelida (e.g., earthworm) and Arthropoda (e.g., cockroach, prawn etc.). Most chordates too, exhibit segmentation at some point duringtheir life history.
Answer: Option A. -> Ornithorhynchus lays eggs
:
A
Ornithorhynchus (platypus)is an egg-laying mammal. Cloaca is a common chamber into which the alimentary, reproductive and urinary tracts open, in amphibians and some reptiles. Rat is however, a mammal, and does not possess a cloaca. Amphibian skin is smooth and moist and is devoid of scales. Feathers are typical of birds. Bat is a mammal, and is devoid of feathers on its body.
:
A
Ornithorhynchus (platypus)is an egg-laying mammal. Cloaca is a common chamber into which the alimentary, reproductive and urinary tracts open, in amphibians and some reptiles. Rat is however, a mammal, and does not possess a cloaca. Amphibian skin is smooth and moist and is devoid of scales. Feathers are typical of birds. Bat is a mammal, and is devoid of feathers on its body.
Answer: Option B. -> Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
:
B
Bats and whales are members of Class Mammalia. Bats are mammals which have wings and can fly, while whales are the largest animals in existence.Both bats and whales have four chambered hearts, but this is not the reason for them to be classified as mammals. They are mammals because of the presence of mammary glands. Moreover, birds and crocodiles also have four chambered hearts, which indicates that the four chambered heart is not unique to mammals alone.
:
B
Bats and whales are members of Class Mammalia. Bats are mammals which have wings and can fly, while whales are the largest animals in existence.Both bats and whales have four chambered hearts, but this is not the reason for them to be classified as mammals. They are mammals because of the presence of mammary glands. Moreover, birds and crocodiles also have four chambered hearts, which indicates that the four chambered heart is not unique to mammals alone.
Answer: Option C. -> Arthropoda
:
C
Bilateral symmetry, triploblastic nature and metamerism are seen in both Annelida and Arthropoda. However, arthropods possess an open vascular system, while annelids possess a closed type.
:
C
Bilateral symmetry, triploblastic nature and metamerism are seen in both Annelida and Arthropoda. However, arthropods possess an open vascular system, while annelids possess a closed type.