Which of the following is a structural and functional unit of kidneys?

_______ is the study of the physical form and external structure of plants.

Intestinal bacteria synthesizes which of the following in the human body?

Name the first female Nobel Prize winner from India.

Which of these railway stations is a World Heritage Site?

A piece of paper is folded and punched as shown below in the question figures. From the given answer figures, indicate how it will appear when opened?

Identify the diagram that best represents the relationship among the given classes.

Sweets, Ladoo, Jalebi

If a mirror is placed on the line MN, then which answer figures is the right image of the given figure?