1. : What is the primary function of the mammalian heart?
(A) To pump blood throughout the body
(B) To produce hormones
(C) To filter blood
(D) To digest food
2. : Which organ is responsible for gas exchange in mammals?
(A) Lungs
(B) Liver
(C) Kidney
(D) Heart
3. : What is the primary role of the mammalian liver?
(A) To detoxify chemicals and produce bile
(B) To filter blood
(C) To store energy
(D) To regulate body temperature
4. : Which part of the mammalian brain is responsible for regulating homeostasis?
(A) Hypothalamus
(B) Cerebellum
(C) Hippocampus
(D) Medulla oblongata
5. : What is the function of mammalian red blood cells?
(A) To transport oxygen and carbon dioxide
(B) To fight infections
(C) To clot blood
(D) To produce hormones
6. : What is the primary function of mammalian kidneys?
(A) To filter blood and produce urine
(B) To regulate heart rate
(C) To aid in digestion
(D) To produce insulin
7. : Which gland in mammals is responsible for producing adrenaline?
(A) Adrenal gland
(B) Thyroid gland
(C) Pituitary gland
(D) Pancreas
8. : What is the role of the mammalian diaphragm?
(A) To aid in breathing by contracting and relaxing
(B) To pump blood
(C) To digest food
(D) To filter toxins
9. : Which type of muscle tissue is responsible for voluntary movement in mammals?
(A) Skeletal muscle
(B) Cardiac muscle
(C) Smooth muscle
(D) Epithelial tissue
10. : How do mammals primarily regulate their body temperature?
(A) Through sweating and panting
(B) By changing their metabolic rate
(C) By altering their feeding habits
(D) Through hibernation
11. : What structure in mammals is responsible for absorbing nutrients from digested food?
(A) Small intestine
(B) Stomach
(C) Large intestine
(D) Liver
12. : What is the primary function of mammalian skin?
(A) To protect against environmental damage and regulate temperature
(B) To aid in digestion
(C) To produce blood cells
(D) To store nutrients
13. : Which system in mammals is responsible for transporting hormones throughout the body?
(A) Endocrine system
(B) Nervous system
(C) Digestive system
(D) Respiratory system
14. : What type of teeth are specialized for cutting in mammals?
(A) Incisors
(B) Molars
(C) Canines
(D) Premolars
15. : How do mammals typically excrete waste products?
(A) Through urine and feces
(B) Through perspiration
(C) Through respiration
(D) Through the lymphatic system
16. : What is the primary function of mammalian sweat glands?
(A) To regulate body temperature through evaporation
(B) To produce hormones
(C) To aid in digestion
(D) To filter blood
17. : Which organ in mammals is responsible for producing insulin?
(A) Pancreas
(B) Liver
(C) Kidney
(D) Adrenal gland
18. : What is the primary function of mammalian lymphatic system?
(A) To maintain fluid balance and defend against disease
(B) To transport oxygen
(C) To digest food
(D) To regulate temperature
19. : Which part of the mammalian brain is primarily involved in sensory processing?
(A) Cerebral cortex
(B) Cerebellum
(C) Brainstem
(D) Thalamus
20. : What is the primary function of mammalian large intestine?
(A) To absorb water and electrolytes, and form feces
(B) To digest proteins
(C) To absorb nutrients
(D) To filter blood
21. : What structure in mammals helps in the production of sound?
(A) Larynx
(B) Pharynx
(C) Trachea
(D) Esophagus
22. : Which system in mammals is responsible for removing carbon dioxide from the blood?
(A) Respiratory system
(B) Circulatory system
(C) Digestive system
(D) Endocrine system
23. : How do mammals primarily obtain their nutrients?
(A) Through ingestion of food
(B) Through absorption of nutrients from the environment
(C) Through synthesis in their cells
(D) Through diffusion
24. : What type of blood vessel carries blood away from the heart in mammals?
(A) Arteries
(B) Veins
(C) Capillaries
(D) Venules
25. : What is the primary function of mammalian red bone marrow?
(A) To produce blood cells
(B) To store fat
(C) To provide structural support
(D) To regulate calcium levels
26. : Which organ in mammals is involved in the storage of bile?
(A) Gallbladder
(B) Liver
(C) Pancreas
(D) Small intestine
27. : What is the function of mammalian hair or fur?
(A) To provide insulation and protect the skin
(B) To aid in digestion
(C) To produce sweat
(D) To assist in respiration
28. : What part of the mammalian nervous system controls involuntary actions such as heartbeat and digestion?
(A) Autonomic nervous system
(B) Somatic nervous system
(C) Central nervous system
(D) Peripheral nervous system
29. : Which mammalian organ is primarily responsible for nutrient absorption?
(A) Small intestine
(B) Large intestine
(C) Stomach
(D) Liver
30. : What is the primary role of mammalian kidneys in fluid balance?
(A) To filter and regulate water and electrolyte levels in the blood
(B) To produce digestive enzymes
(C) To filter toxins from the body
(D) To aid in thermoregulation