B.Sc. Entrance Exam Zoology MCQs
Disclaimer: We hope that prospective students can use this page for practice entrance examinations to get admission into bachelor of science. Though the MCQs (multuiple choice questions) of zoology are brought here from the sample entrance exam of Tribhuvan university, the actual practice can help the aspirant student in any part of the globe.
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- The father of zoology is
- Robert Hooke
- Aristotle
- Linnaeus
- Theophrastus
Correct Answer: Aristotle
Explanation: Aristotle made significant contributions to the study of animal life through systematic observations and classifications. So, Aristotle is considered as the father of zoology.
Aristotle is also considered as father of biology.
- The study of insects is called
- Entomology
- Parasitology
- Mycology
- Taxonomy
Correct Answer: Entomology
Explanation: Entomology is the branch of zoology focused on the study of insects, including their behavior, ecology, and classification.
- Which group has radially symmetrical body?
- Protozoa
- Echinodermata
- Annelida
- Mollusca
Correct Answer: Echinodermata
Explanation: Echinoderms such as starfish and sea urchins, have radially symmetrical bodies. Their body parts are arranged around a central axis.
- Haemocoel is present in
- Arthropoda
- Annelida
- Fish
- Amphibia
Correct Answer: Arthropoda
Explanation: Arthropods, like insects and spiders, possess a hemocoel, a fluid-filled body cavity that functions as a part of their circulatory system.
- Water vascular system is present in
- Porifera
- Coelenterata
- Echinodermata
- Arthropoda
Correct Answer: Echinodermata
Explanation: Arthropods, like insects and spiders, possess a hemocoel, a fluid-filled body cavity that functions as a part of their circulatory system.
- Operculum is used to cover
- Eye
- Gill
- Mouth
- Ear
Correct Answer: Gill
Explanation: The operculum is a bony plate that covers and protects the gills in fish, allowing them to breathe efficiently underwater.
- Which one of the following is an insect?
- Spider
- Scorpion
- Prawn
- Grasshopper
Correct Answer: Grasshopper
Explanation: Grasshoppers fall under the category of insects. They have arachnids, a three part body and six legs.
- Which one is a true fish?
- Cuttlefish
- Starfish
- Dogfish
- Silverfish
Correct Answer: Dogfish
Explanation: The dogfish is a true fish, belonging to the class Chondrichthyes, characterized by a cartilaginous skeleton.
- Which nucleus has role in conjugation in Paramecium?
- meganucleus
- micronucleus
- macronucleus
- cellular nucleus
Correct Answer: micronucleus
Explanation: In Paramecium, the micronucleus is responsible for genetic exchange during conjugation, which is essential for sexual reproduction.
- Which Segment of the earthworm has setae present in?
- first
- last
- tenth
- clitellar
Correct Answer: tenth
Explanation: In earthworms, setae are present on each segment except the first and last, with the 10th segment having a notable presence.
- In earthworms, male genital aperture is situated on
- 14th segment
- 10th segment
- 18th segment
- 17th segment
Correct Answer: 18th segment
Explanation: The male genital aperture of earthworms is located on the 18th segment, through which sperm is transferred during reproduction.
- The function of spermatheca in earthworm is to
- store ova
- store sperms
- store enzyme
- store zygote
Correct Answer: store sperms
Explanation: Spermatheca in earthworms store sperms received from another worm during copulation, enabling fertilization of eggs later.
- The causative agent of Tuberculosis is
- Leishmania
- Salmonella
- Mycobacterium
- Taenia
Correct Answer: Mycobacterium
Explanation: Mycobacterium tuberculosis is the bacterium responsible for causing tuberculosis.
- Which of the following is a non-communicable disease?
- TB
- Kala-azar
- AIDS
- Cancer
Correct Answer: Cancer
Explanation: Cancer is a non-communicable disease characterized by the uncontrolled growth of abnormal cells in the body.
- Which of the following is an air-borne disease?
- Typhoid
- TB
- Filaria
- Cancer
Correct Answer: TB
Explanation: Tuberculosis (TB) is an airborne disease that spreads through respiratory droplets from an infected person.
- In which season, frogs usually go for aestivation?
- Summer
- Autumn
- Winter
- Spring
Correct Answer: Summer
Explanation: Frogs undergo aestivation, a period of dormancy, during hot and dry summer months to avoid desiccation.
- Which blood vessel supplies the blood to the liver?
- Renal artery
- Hepatic artery
- Coronary artery
- Gastric artery
Correct Answer: Hepatic artery
Explanation: The hepatic artery supplies oxygenated blood to the liver, which is vital for various metabolic processes.
- The testis of frog is attached with peritoneum. This structure is called
- mesorchium
- nephron
- retroperitoned
- mesovarian
Correct Answer: mesorchium
Explanation: The mesorchium is the peritoneal fold that supports and attaches the testes to the abdominal wall in frogs.
- Which one of the following is a vestigial organ?
- Fore limb
- Hind Limb
- Appendix
- Liver
Correct Answer: Appendix
Explanation: The appendix is considered a vestigial organ, meaning it has lost much of its original function through evolution.
- Miller and Urey experiment is designed for verification of
- Darwin's theory
- Oparin's theory
- Lamarck's theory
- Redi's theory
Correct Answer: Oparin's theory
Explanation: The Miller-Urey experiment was designed to test Oparin's theory of abiogenesis, exploring the origin of life from simple chemical compounds.
- Theory of "Inheritance of Acquired Characters" was proposed by
- Darwin
- Lamarck
- Hugo de-Vries
- Huxley
Correct Answer: Lamarck
Explanation: Lamarck proposed the theory of "Inheritance of Acquired Characters", suggesting that traits acquired during an organism’s lifetime could be passed to offspring.
- Striped muscle is different from unstriped on the basis of
- nuclei
- myofibrils
- shape
- dark and light bands
Correct Answer: dark and light bands
Explanation: Striped muscle (skeletal muscle) differs from unstriped muscle (smooth muscle) by its striated appearance, which is due to alternating dark and light bands.
- Nephrons are found in
- kidneys
- liver
- testes
- ovaries
Correct Answer: kidneys
Explanation: Nephrons are the functional units of the kidneys responsible for filtering blood and producing urine.
- Which stage of embryo is blastocoel present?
- Morula
- Gastrula
- Neurula
- Blastula
Correct Answer: Blastula
Explanation: The blastula stage of embryonic development features a blastocoel, a fluid-filled cavity surrounded by a single layer of cells.
- Which of these is the hormone released from adrenal glands?
- Glucagon
- Mineralocorticoides
- Insulin
- GSH
Correct Answer: Mineralocorticoides
Explanation: Mineralocorticoids are hormones released from the adrenal glands that help regulate sodium and potassium balance in the body.
- The enzyme trypsin is released from
- Stomach
- Intestine
- Liver
- Pancreas
Correct Answer: Pancreas
Explanation: Trypsin is an enzyme released from the pancreas that aids in the digestion of proteins in the small intestine.
- Which of the following is not a covering of brain in human?
- Duramater
- Epithelium
- Piamater
- Arachnoid
Correct Answer: Epithelium
Explanation: The brain is covered by three protective membranes called meninges, including the dura mater, pia mater, and arachnoid mater, but not epithelium.
- The cavity found in pelvic girdle of mammal is
- acetabulum
- glenoid cavity
- obturator foramen
- sigmoid notch
Correct Answer: acetabulum
Explanation: The acetabulum is the cup-shaped socket in the pelvic girdle that articulates with the head of the femur to form the hip joint.
- Fish that migrate within the ocean is
- potamodromous
- amphidromous
- catadromous
- oceanodromous
Correct Answer: oceanodromous
Explanation: Oceanodromous fish migrate within the ocean, often traveling long distances in response to environmental changes.
- Wall lizard can hold on the wall due to
- vacuum creation
- tail
- sticky secretion
- nail
Correct Answer: vacuum creation
Explanation: Wall lizards can climb walls due to the microscopic setae on their feet that create a vacuum-like effect, enhancing their grip.
- Which of these is an example of reflex action?
- Vision
- Eye-blinking
- Movement
- Reading
Correct Answer: Eye-blinking
Explanation: Eye-blinking is an example of a reflex action, which is an automatic and rapid response to a stimulus.