Animal Tissue and Anatomy

The Malpighian body (or renal corpuscle) consists of the glomerulus and the Bowman's capsule combined.

The larynx, located at the top of the trachea, contains the vocal cords and is commonly known as the voice box.

The external openings of the nasal cavity are anatomically known as nostrils.

 Trachea is supported by rings of soft bones called cartilage.

The pharynx is the muscular tube that connects the mouth and nasal cavity to the esophagus and the larynx (windpipe).

The trachea bifurcates into two primary bronchi, which lead into the left and right lungs.

Clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches

Scrotum consists of a suspended sack of skin and smooth muscle that is dual-chambered, present in most terrestrial male mammals and is located under the penis.

Skeletal system is the system of the body which provides framework to the body. It supports, protects the body and allows the movement of various body parts. It includes bones, tendons, ligaments, cartilages, joints, etc. Digestive system helps in food digestion, circulatory in the circulation of blood and excretory in the removal of wastes.

Purkinje fibres are found in the heart. They are specialized conducting fibers.

Option (1) is the correct answer. Lymph nodes are major sites of B, T and other immune cells.

Testis is a primary sex organ  in males as it produces gametes.

 Most busy organ is heart because it is continuously pumping blood to all the vital organs in the body to ensure their proper functioning all the time.

 Both muscular and skeletal systems protects the internal organs of the body.The muscles of the muscular system keep bones in place; they assist with movement by contracting and pulling on the bones. 

Epiglottis prevents the entry of food in wind pipe.