Which of the following statements about genetics is correct? MCQ with Answer and Explanation

Explanation:
The femur (thigh bone) is the longest, strongest, and heaviest bone, supporting body weight during standing and walking.

Explanation:
Chondrichthyes are cartilaginous fishes with a skeleton made entirely of cartilage, a ventral mouth, and lack operculum. Pristis (sawfish), Scoliodon (dogfish), and Carcharodon (great white shark) belong to this class. Labeo rohita (Rohu) and Catla catla are Osteichthyes (bony fishes). Hippocampus (seahorse) is also a bony fish. Exam tip: Chondrichthyes = cartilaginous; Osteichthyes = bony.

Explanation:
The larynx, also called the voice box, contains vocal cords that vibrate as air passes, producing sound. It is located at the top of the trachea. The trachea (windpipe) conducts air; pharynx is the common passage for food and air; bronchi lead to lungs. The larynx is cartilaginous, and in males, the thyroid cartilage forms the Adam's apple.