Free Kingdom Animalia MCQs with Answers
912 Kingdom Animalia MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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912 questions · page 40 of 46
- A. Muscles
- B. Hydrostatic skeleton
- C. Parapodia
- D. Setae
Explanation: All annelids except leeches also have chitonous hair-like structures, called setae, projecting from their cuticle.
Correct answer: Setae- A. They have a vertebral column
- B. Their brain is enclosed by the skull
- C. The embryos have gills
- D. The body develops from 3 germinal layers
Explanation: The vertebrates have a vertebral column, something like the notochord. Vertebrates show all the characteristic features of the phylum…
Correct answer: They have a vertebral column- A. Arachnida
- B. Insecta
- C. Cephalopoda
- D. Myriapoda
Explanation: Correct option:D (It is a fact that Centipedes belong to the class Myriapoda of arthropoda). Centipedes belong to the class Myriapoda.
Correct answer: Myriapoda- A. Arthropods
- B. Fish
- C. Annelids
- D. Nematods
Explanation: Annelids have a hydrostatic skeleton in their body structure.
Correct answer: Annelids- A. Tendons and joint capsules
- B. Thorax
- C. Antennae
- D. Abdomen
Explanation: Stretch receptors are mechanoreceptors responsive to the distention of various organs and muscles and are neurologically linked to the…
Correct answer: Tendons and joint capsules- A. Glochidium larva
- B. Bipinnaria larva
- C. Trochophore larva
- D. Tomaria larva
Explanation: Trochophore, also called trochosphere, small, translucent, free-swimming larva characteristic of marine annelids and most groups of…
Correct answer: Trochophore larva787. Platyhelminthes are
- A. Bilaterally symmetrical and diploblastic
- B. Bilaterally symmetrical and triploblastic
- C. Radially symmetrical and triploblastic
- D. Radially symmetrical and diploblastic
Explanation: Phylum Platyhelminthes belongs to the kingdom Animalia. This phylum includes 13,000 species. The organisms are also known as flatworms.
Correct answer: Bilaterally symmetrical and triploblastic- A. Early cleavages of the zygote
- B. Ultimate function of the opening to the archenteron
- C. Number of germ layers in the developing embryo
- D. Embryonic origin of the mouth
- E. embryonic origin of the coelom
Explanation: Both deuterostomes and protostomes have three germ layers. The statement that is NOT true among the given options is: "number of germ…
Correct answer: Number of germ layers in the developing embryo- A. Roundworms
- B. Flatworms
- C. Hookworms
- D. Threadworms
- E. Pinworms
Explanation: The phylum Platyhelminthes consists of flatworms, which are named for their flat, dorsoventrally flattened bodies.
Correct answer: Flatworms- A. Fishes
- B. Reptiles
- C. Birds
- D. Amphibians
- E. A B and C
Explanation: The skin of most fishes is covered with scales. Placoid scales in sharks and rays, cosmoid scales in lungfishes and some fossil fishes…
Correct answer: A B and C- A. Pisces
- B. Aves
- C. Reptiles
- D. Amphibians
Explanation: Amphibia is a class of vertebrates that includes frogs, toads, newts, and salamanders.
Correct answer: Amphibians- A. They have a vertebral column
- B. The brain is enclosed by the skull
- C. The embryos have gills
- D. All of these
Explanation: Vertebrates belong to phylum Chordata primarily because they exhibit several defining features, including a vertebral column (backbone), a…
Correct answer: All of these- A. Nematodes
- B. Arthropods
- C. Molluscs
- D. None of these
Explanation: Arthropods are believed to have a common origin with annelids. Arthropods, which include insects, spiders, crustaceans, and other…
Correct answer: Arthropods- A. Head
- B. Dorsal muscular foot
- C. Dorsal visceral body
- D. Both A and B
Explanation: The correct option is C. The mantle in molluscs is a significant anatomical feature that forms a protective layer over the dorsal visceral…
Correct answer: Dorsal visceral body- A. Haemoglobin
- B. None
- C. Hemocyanin
- D. Hemolymph
Explanation: Haemoglobin is an oxygen carrying respiratory pigment found in chordates. It is found in the erythrocytes of these animals.
Correct answer: Haemoglobin- A. Pidgeon
- B. Elephant
- C. Sheep
- D. Humans
Explanation: Option A is correct since oviparous animals are animals that produce young using eggs that are hatched after they have been laid by the…
Correct answer: Pidgeon- A. Amphibians
- B. Birds
- C. Mammals
- D. Reptiles
Explanation: Reptile eggs, including those of snakes and many turtles, are characterized by their leathery shells, which are flexible and often adhere…
Correct answer: Reptiles- A. Earthworm
- B. Cockroach
- C. Butterfly
- D. Sting ray
Explanation: Option D is correct since stingray is a deuterostome.Option A is incorrect since the earthworm is an annelid that belongs to the…
Correct answer: Sting ray- A. Muscles
- B. Hydrostatic skeleton
- C. Parapodia
- D. Setae
- E. A,C and D
Explanation: All annelids except leeches also have chitonous hair-like structures, called setae, projecting from their cuticle.
Correct answer: A,C and D- A. Mollusca
- B. Echinoderms
- C. Flatworms
- D. Sponges
Explanation: Echinoderms exhibit both radial and bilateral symmetry. During larval stages, echinoderms have bilateral symmetry whereas they have…
Correct answer: Echinoderms