What type of epithelium is found in the epidermis?

Correct Answer: C

Rationale: Stratified squamous epithelium forms the epidermis, multi-layered and keratinized, protecting against abrasion, UV, and pathogens, as skin's outer barrier. Simple cuboidal is for secretion (e.g., glands), simple columnar for absorption (e.g., gut), and transitional for stretching (e.g., bladder) none match skin's needs. Stratified squamous's tough, renewable structure, per integumentary system, makes 'c' correct.

Correct Answer: C

Rationale: Eight cranial bones form the skull's braincase: frontal, 2 parietals, 2 temporals, occipital, sphenoid, ethmoid. Options 10, 12, 14 (a, b, d) may confuse with facial bones (14 total), but cranial-specific is 8. This count, per skull anatomy, makes 'c' correct.

Correct Answer: A

Rationale: Facial bones include maxilla (upper jaw) and mandible (lower jaw), shaping the face (14 total). Humerus/femur are limb, scapula/clavicle are pectoral girdle, occipital/parietal are cranial not facial. Maxilla/mandible's facial role, per skull, makes 'a' correct.

Correct Answer: C

Rationale: Hyaline cartilage, smooth and glassy, forms costal cartilage in the rib cage, connecting ribs to sternum, flexible yet supportive. Elastic is in ears, fibrocartilage in discs neither fit ribs. Hyaline's prevalence, per thorax, makes 'c' correct.

Correct Answer: C

Rationale: ATP stores energy in its phosphate bonds, releasing it controllably for cellular work (e.g., muscle contraction), a universal energy currency. It results from catabolism , but that's not why it's important storage is key. It doesn't release energy uncontrollably , that's inefficient. Not all only 'c' fits. ATP's energy storage role, per biochemistry, makes 'c' correct.