Animal Biology MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Animal Biology MCQs for Preparation.
The student can clear their concepts for Animal Biology online quiz by attempting it. Doing MCQs based Animal Biology will help you to check your understanding and identify areas of improvement.
Animal Biology Online MCQs with Answers
What is the primary function of the respiratory system in animals?
a) Absorption of nutrients
b) Circulation of blood
c) Production of hormones
d) Exchange of gases
Which of the following is the largest organ in the human body?
a) Heart
b) Liver
c) Brain
d) Skin
What is the process by which animals obtain and ingest food?
a) Digestion
b) Circulation
c) Respiration
d) Reproduction
Which of the following is responsible for the transportation of oxygen in the bloodstream?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the primary function of the nervous system in animals?
a) Reproduction
b) Movement
c) Control and coordination
d) Exchange of gases
Which of the following is responsible for the filtration of waste products from the blood in the kidneys?
a) Nephrons
b) Glomerulus
c) Ureters
d) Bladder
What is the process by which animals convert food into energy?
a) Respiration
b) Circulation
c) Digestion
d) Metabolism
Which of the following is the main organ of the circulatory system in animals?
a) Heart
b) Lungs
c) Liver
d) Kidneys
What is the process by which animals eliminate waste products from the body?
a) Respiration
b) Circulation
c) Excretion
d) Digestion
Which of the following is responsible for the production of eggs in female animals?
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes
What is the primary function of the skeletal system in animals?
a) Reproduction
b) Movement and support
c) Protection of internal organs
d) Exchange of gases
Which of the following is responsible for the digestion and absorption of nutrients in the small intestine?
a) Villi
b) Microvilli
c) Peyer’s patches
d) Gastric glands
What is the process by which animals produce offspring?
a) Reproduction
b) Circulation
c) Respiration
d) Digestion
Which of the following is responsible for the transportation of sperm in male animals?
a) Seminal vesicles
b) Prostate gland
c) Vas deferens
d) Epididymis
What is the primary function of the endocrine system in animals?
a) Reproduction
b) Movement and support
c) Control and coordination
d) Exchange of gases
Which of the following is responsible for the production of antibodies in the immune system?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the process by which animals exchange gases with the environment?
a) Respiration
b) Circulation
c) Digestion
d) Metabolism
Which of the following is the main organ of the respiratory system in animals?
a) Heart
b) Lungs
c) Liver
d) Kidneys
What is the process by which animals obtain oxygen and release carbon dioxide?
a) Inhalation and exhalation
b) Digestion and absorption
c) Circulation and filtration
d) Reproduction and development
Which of the following is responsible for the coordination of voluntary movements in animals?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Spinal cord
What is the process by which animals break down food into smaller molecules?
a) Digestion
b) Circulation
c) Respiration
d) Excretion
Which of the following is responsible for the transportation of nutrients and waste products in the bloodstream?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the primary function of the reproductive system in animals?
a) Respiration
b) Circulation
c) Digestion
d) Reproduction
Which of the following is responsible for the filtration of blood in the spleen?
a) Nephrons
b) Glomerulus
c) Red blood cells
d) White blood cells
What is the process by which animals move from one place to another?
a) Locomotion
b) Reproduction
c) Digestion
d) Metabolism
Which of the following is responsible for the storage and release of bile in the digestive system?
a) Gallbladder
b) Liver
c) Pancreas
d) Appendix
What is the primary function of the excretory system in animals?
a) Respiration
b) Circulation
c) Digestion
d) Excretion
Which of the following is responsible for the transportation of eggs from the ovaries to the uterus in female animals?
a) Oviducts
b) Ureters
c) Vagina
d) Fallopian tubes
What is the process by which animals convert oxygen and glucose into ATP (adenosine triphosphate)?
a) Respiration
b) Circulation
c) Digestion
d) Metabolism
Which of the following is responsible for the transportation of hormones in the bloodstream?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the primary function of the muscular system in animals?
a) Reproduction
b) Movement
c) Control and coordination
d) Exchange of gases
Which of the following is responsible for the production of urine in the kidneys?
a) Nephrons
b) Glomerulus
c) Ureters
d) Bladder
What is the process by which animals pump blood throughout the body?
a) Circulation
b) Respiration
c) Digestion
d) Excretion
Which of the following is the main organ of the digestive system in animals?
a) Heart
b) Lungs
c) Liver
d) Stomach
What is the process by which animals break down glucose to release energy in the presence of oxygen?
a) Aerobic respiration
b) Anaerobic respiration
c) Photosynthesis
d) Fermentation
Which of the following is responsible for the transportation of nutrients from the digestive system to the cells of the body?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the process by which animals remove undigested waste from the body?
a) Defecation
b) Respiration
c) Circulation
d) Excretion
Which of the following is responsible for the production of sperm in male animals?
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes
What is the primary function of the immune system in animals?
a) Respiration
b) Circulation
c) Digestion
d) Defense against pathogens
Which of the following is responsible for the transportation of oxygen from the lungs to the rest of the body in the bloodstream?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the process by which animals break down glucose to release energy in the absence of oxygen?
a) Aerobic respiration
b) Anaerobic respiration
c) Photosynthesis
d) Fermentation
Which of the following is responsible for the transportation of waste products from the cells to the kidneys in the bloodstream?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the primary function of the integumentary system in animals?
a) Respiration
b) Circulation
c) Digestion
d) Protection and regulation
Which of the following is responsible for the filtration of blood in the kidneys?
a) Nephrons
b) Glomerulus
c) Ureters
d) Bladder
What is the process by which animals eliminate excess heat from the body?
a) Perspiration
b) Circulation
c) Digestion
d) Respiration
Which of the following is responsible for the production of milk in female animals?
a) Ovaries
b) Testes
c) Mammary glands
d) Fallopian tubes
What is the primary function of the exoskeleton in arthropods?
a) Reproduction
b) Movement and support
c) Control and coordination
d) Exchange of gases
Which of the following is responsible for the transportation of nutrients and waste products in the digestive system?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
What is the process by which animals break down food outside the body and then ingest it?
a) Digestion
b) Circulation
c) Respiration
d) Excretion
Which of the following is responsible for the transportation of electrical signals in the nervous system?
a) Neurons
b) Red blood cells
c) Platelets
d) Plasma
What is the primary function of the excretory system in insects?
a) Respiration
b) Circulation
c) Digestion
d) Excretion
Which of the following is responsible for the production of eggs in insects?
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes
What is the process by which animals break down carbohydrates into glucose?
a) Glycolysis
b) Glycogenesis
c) Glycogenolysis
d) Gluconeogenesis
Which of the following is responsible for the transportation of nutrients from the digestive system to the cells of the body in insects?
a) Red blood cells
b) White blood cells
c) Hemolymph
d) Plasma
What is the primary function of the excretory system in birds?
a) Respiration
b) Circulation
c) Digestion
d) Excretion
Which of the following is responsible for the production of eggs in birds?
a) Ovaries
b) Testes
c) Uterus
d) Oviducts
What is the process by which animals break down fats to release energy?
a) Lipolysis
b) Lipogenesis
c) Lipid oxidation
d) Lipid synthesis
Which of the following is responsible for the transportation of oxygen in the bloodstream of insects?
a) Red blood cells
b) White blood cells
c) Hemolymph
d) Plasma
What is the primary function of the excretory system in reptiles?
a) Respiration
b) Circulation
c) Digestion
d) Excretion
Which of the following is responsible for the production of eggs in reptiles?
a) Ovaries
b) Testes
c) Uterus
d) Oviducts
What is the process by which animals convert amino acids into glucose?
a) Glycolysis
b) Glycogenesis
c) Gluconeogenesis
d) Glycogenolysis
Which of the following is responsible for the transportation of oxygen in the bloodstream of reptiles?
a) Red blood cells
b) White blood cells
c) Hemolymph
d) Plasma
What is the primary function of the excretory system in fish?
a) Respiration
b) Circulation
c) Digestion
d) Excretion
Which of the following is responsible for the production of eggs in fish?
a) Ovaries
b) Testes
c) Uterus
d) Oviducts
What is the process by which animals convert glucose into glycogen for storage?
a) Glycolysis
b) Glycogenesis
c) Gluconeogenesis
d) Glycogenolysis
Which of the following is responsible for the transportation of oxygen in the bloodstream of fish?
a) Red blood cells
b) White blood cells
c) Hemolymph
d) Plasma
What is the primary function of the excretory system in amphibians?
a) Respiration
b) Circulation
c) Digestion
d) Excretion
Which of the following is responsible for the production of eggs in amphibians?
a) Ovaries
b) Testes
c) Uterus
d) Oviducts
What is the process by which animals convert light energy into chemical energy?
a) Photosynthesis
b) Respiration
c) Digestion
d) Metabolism
Which of the following is responsible for the transportation of nutrients and waste products in the circulatory system of amphibians?
a) Red blood cells
b) White blood cells
c) Lymph
d) Plasma