Welcome to the Animal Biology and Zoology MCQs with Answers. In this post, we are sharing Animal Biology and Zoology Multiple Choice Questions and Answers in Everyday Science section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Animal Biology and Zoology online MCQs Test.
Which of the following is a characteristic of mammals?
a) Cold-blooded
b) Lays eggs
c) Has feathers
d) Hair or fur
What is the primary function of the exoskeleton in arthropods?
a) Regulate body temperature
b) Protect internal organs
c) Aid in digestion
d) Facilitate respiration
Which group of animals is known for having a radial symmetry?
a) Mollusks
b) Arthropods
c) Echinoderms
d) Chordates
What is the main function of the notochord in chordates?
a) Support and structure
b) Respiration
c) Digestion
d) Locomotion
Which type of symmetry is exhibited by most cnidarians?
a) Bilateral
b) Radial
c) Asymmetrical
d) Spiral
In which animal group would you find a cloaca?
a) Mammals
b) Birds
c) Reptiles
d) Amphibians
What is the primary role of the swim bladder in fish?
a) Aid in digestion
b) Regulate buoyancy
c) Facilitate reproduction
d) Protect internal organs
Which class of animals includes jellyfish and corals?
a) Annelida
b) Cnidaria
c) Arthropoda
d) Mollusca
What type of circulatory system do most mollusks have?
a) Open circulatory system
b) Closed circulatory system
c) Double circulatory system
d) None of the above
Which organ is primarily responsible for filtering blood in mammals?
a) Liver
b) Heart
c) Kidneys
d) Lungs
What is the main difference between amphibians and reptiles?
a) Amphibians have dry, scaly skin, while reptiles have moist skin
b) Amphibians are cold-blooded, while reptiles are warm-blooded
c) Amphibians undergo metamorphosis, while reptiles do not
d) Reptiles lay eggs, while amphibians do not
Which class of animals is characterized by the presence of feathers?
a) Mammals
b) Reptiles
c) Birds
d) Amphibians
Which structure is unique to arthropods and provides protection and support?
a) Exoskeleton
b) Endoskeleton
c) Shell
d) Scales
In which group of animals would you find a notochord during at least one stage of development?
a) Arthropods
b) Cnidarians
c) Chordates
d) Mollusks
Which of the following animals has a three-chambered heart?
a) Mammals
b) Birds
c) Reptiles
d) Fish
What is the primary mode of nutrition for most animals in the phylum Porifera?
a) Photosynthesis
b) Filter feeding
c) Herbivory
d) Carnivory
Which type of symmetry is observed in most bilaterally symmetrical animals?
a) Radial symmetry
b) Bilateral symmetry
c) Asymmetry
d) Spherical symmetry
Which phylum includes animals such as snails and clams?
a) Annelida
b) Mollusca
c) Arthropoda
d) Echinodermata
What type of body cavity is found in organisms from the phylum Platyhelminthes?
a) Coelom
b) Pseudocoelom
c) Acoelom
d) Hydrocoelom
Which class of animals includes the most diverse range of species?
a) Mammals
b) Birds
c) Insects
d) Reptiles
What is the primary function of the malpighian tubules in insects?
a) Digestion
b) Excretion
c) Respiration
d) Reproduction
Which of the following animals are known for their ability to regenerate lost body parts?
a) Mammals
b) Birds
c) Echinoderms
d) Reptiles
Which phylum includes animals with jointed legs and an exoskeleton?
a) Annelida
b) Mollusca
c) Arthropoda
d) Cnidaria
In which animal group do you find the greatest number of species?
a) Vertebrates
b) Invertebrates
c) Amphibians
d) Mammals
Which type of animal has a complete digestive system with two openings?
a) Cnidarians
b) Flatworms
c) Annelids
d) Sponges
What is the role of the mantle in mollusks?
a) Digestion
b) Respiration
c) Secretion of the shell
d) Locomotion
Which of the following animals has a hydrostatic skeleton?
a) Earthworms
b) Insects
c) Mollusks
d) Reptiles
Which class of animals includes creatures like the octopus and squid?
a) Bivalvia
b) Gastropoda
c) Cephalopoda
d) Polyplacophora
Which of the following is a characteristic feature of amphibians?
a) Dry, scaly skin
b) Moist skin and the ability to live both in water and on land
c) Feathers
d) Mammary glands
Which type of symmetry is found in animals such as starfish and sea urchins?
a) Bilateral symmetry
b) Radial symmetry
c) Asymmetry
d) Spherical symmetry
Which type of reproduction is common among sponges?
a) Sexual reproduction only
b) Asexual reproduction only
c) Both sexual and asexual reproduction
d) Budding only
What is the primary feeding method of most filter-feeding animals?
a) Grazing on vegetation
b) Preying on other animals
c) Straining particles from water
d) Absorbing nutrients directly from their surroundings
What is a major characteristic of animals in the phylum Annelida?
a) Segmented body
b) Hard exoskeleton
c) Radial symmetry
d) Absence of true tissues
Which class of animals includes the earthworms and leeches?
a) Polychaeta
b) Oligochaeta
c) Hirudinea
d) Cnidaria
Which animal group is known for having a body plan with a central cavity surrounded by tissues?
a) Sponges
b) Cnidarians
c) Arthropods
d) Mollusks
Which class of animals is characterized by having a shell composed of two valves?
a) Cephalopoda
b) Gastropoda
c) Bivalvia
d) Polyplacophora
What is the main function of the radula in gastropods?
a) Locomotion
b) Respiration
c) Feeding
d) Excretion
Which phylum includes animals that have a spiny skin and tube feet?
a) Cnidaria
b) Annelida
c) Echinodermata
d) Mollusca
Which of the following animals is known for its ability to regenerate lost limbs?
a) Starfish
b) Octopus
c) Earthworm
d) Crab
Which group of animals has a unique feature of having a water vascular system?
a) Sponges
b) Mollusks
c) Echinoderms
d) Arthropods
Which type of symmetry is observed in cnidarians such as jellyfish and corals?
a) Bilateral
b) Radial
c) Asymmetrical
d) None of the above
Which phylum includes animals such as spiders and insects?
a) Annelida
b) Mollusca
c) Arthropoda
d) Chordata
Which of the following animals possesses a hydrostatic skeleton?
a) Jellyfish
b) Earthworm
c) Crab
d) Fish
Which class of animals is characterized by the presence of a backbone?
a) Arthropoda
b) Mollusca
c) Chordata
d) Cnidaria
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