1. The largest endocrine gland in the human body is the thyroid gland. This gland is located in the front and bottom of the neck and produces thyroxine and calcitonin hormones.

2. The thyroxine hormone helps regulate the body's metabolism, while the calcitonin hormone helps regulate calcium levels in the blood.

1. Which plane mirror is used to make periscope?

2. An optical instrument used to see through an object that is occluded from the direct line of sight is called a periscope.

3. A periscope consists of two plane mirrors placed at an angle of 45°.

4. When light falls on one of the mirrors then after reflection from the first mirror it falls on the second mirror which further reflects it and falls on the eye of the observer.

Garden Reach Shipbuilders and Engineers Limited (GRSE) is one of India’s leading shipyards, located in Kolkata, West Bengal. It builds and repairs commercial and navals vessels. Founded in 1884 as a small privately owned company on the Eastern Bank of the Hughly river, it was renamed as Garden Reach Workshop in 1916. The company was nationalised by the Government of India in 1960.

Epithelial tissue plays a crucial role in wound healing. When the skin is wounded, epithelial cells at the edges of the wound multiply and migrate to cover the wound, forming a protective layer. This process is essential for the initial sealing of the wound and is one of the early stages in the overall wound healing process. Epithelial tissue helps in closing the wound and restoring the skin's integrity.