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 22 of 46
- A. Goat
- B. Duck
- C. Crocodile
- D. All of these options are correct
Explanation: Option (a) suggests that a goat is a viviparous animal. This statement is correct.
Correct answer: Goat- A. The scales on its body are modified as spines for protection against predators
- B. It lays eggs and has mammary glands
- C. The fur on its body is modified as spines and it is warm-blooded
- D. None of the above options are correct
Explanation: The reason why porcupines are classified as mammals is because they share the defining characteristics of mammals, such as having hair or…
Correct answer: None of the above options are correct- A. Head
- B. Dorsal muscular foot
- C. Dorsal visceral foot
- D. Both A and B
Explanation: Correct option is C. The mantle in molluscs is the dorsal body wall that hides the visceral body part.
Correct answer: Dorsal visceral foot- A. Basking shark
- B. Humans
- C. Blue shark
- D. All of these
Explanation: Blue sharks are ovoviviparous. In ovoviviparity, the eggs develop and hatch inside the mother's body, and the offspring are born live.
Correct answer: Blue shark- A. Centralized nervous system
- B. Partially centralized nervous system
- C. Diffuse nervous system
- D. Partially diffuse nervous system
Explanation: The diffuse nervous system is the most primitive nervous system. In diffuse systems nerve cells are distributed throughout the organism…
Correct answer: Diffuse nervous system- A. Annelida
- B. Cnidaria
- C. Porifera
- D. Protozoa
Explanation: Parazoa is the animal sub-kingdom that includes organisms of the phyla porifera and placozoa. Sponges are the most weel known parazoa.
Correct answer: Porifera- A. Present in stomach
- B. An intestinal parasite
- C. Present in ureter
- D. Present in blood
Explanation: Ascaris is an intestinal parasite of humans. It is the most common human roundworm infection.
Correct answer: An intestinal parasite- A. Porifera
- B. Platyhelminths
- C. Annelids
- D. Nematode
Explanation: Annelids, nematodes, and platyhelminths are segmented, round, and flatworms respectively.
Correct answer: Porifera- A. Rhabdovirus
- B. Rhinovirus
- C. Paramyxovirus
- D. Arbovirus
Explanation: An arbovirus is one sub-type of viruses that are transmitted to humans and/or other vertebrates via arthropods, like dengue fever which is…
Correct answer: Arbovirus- A. None of these
- B. Many joints in legs
- C. No joints in legs
- D. Soft body and joint to allow smooth movement
Explanation: Jointed appendages allow arthropods to have much greater flexibility and range of movement.
Correct answer: Soft body and joint to allow smooth movement- A. Hemoglobin
- 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: Hemoglobin- A. Bivalves
- B. Squid
- C. Snails
- D. Spider
Explanation: Squids are the largest invertebrates among these options, so it is the correct answer.
Correct answer: Squid- A. Chorophyll
- B. Myoglobin
- C. Hemocyanin
- D. Carotene
Explanation: Hemocyanins are the respiratory pigments present in mollusks. They are basically proteins containing two copper atoms that bind to an…
Correct answer: Hemocyanin- A. Body cavity
- B. Habitat
- C. Deuterostomia
- D. Nervous system
Explanation: The main difference between chordates and hemichordates is their nervous system.
Correct answer: Nervous system- A. Taenia
- B. Schistosoma
- C. Dugesia
- D. Fascia
Explanation: Proglottids are reproductive segments in tapeworms and intestinal parasites such as Taenia saginata.
Correct answer: Taenia- A. Crustacean
- B. Spider
- C. Mosquito
- D. Butterfly
Explanation: Most of the arthropods, especially the members of classes Insecta (butterfly and mosquito) and Crustacea, have compound eyes.
Correct answer: Spider- A. Eel
- B. Shark
- C. Goldfish
- D. Dipnoi
Explanation: The order Dipnoi, also called the lungfish, belong to the class Osteichthyes and have both lungs and gills for the purpose of respiration.
Correct answer: Dipnoi- A. Echinoderms
- B. Hemichordates
- C. Chordates
- D. Arthropods
Explanation: The fate of all cells is decided in Arthropods that are protostomes. They have determinate and spiral cleavage.
Correct answer: Arthropods- A. Metatheria
- B. Eutheria
- C. Prototheria
- D. All of these
Explanation: Mammals belong to Mammalia, a class of kingdom Animalia, in which the newlyborns are nourished with milk from the mother's mammary glands.
Correct answer: All of these440. Aphid is a:
- A. Bacteria
- B. Virus
- C. Parasite
- D. Herbivore
Explanation: Aphids are herbivorous insects that suck nutrient-rich juices (sap) out of plants. Their common names are greenfly or blackfly.
Correct answer: Herbivore