Given below is a simple diagram of the human kidney cut open longitudinally. Answer the following questions :

Give the definition of excretion.

The diagram given below is an external view of the human brain. Study the same and answer the questions that follow : What is the function of Cerebrospinal fluid ?

Given below is the diagram of an experiment just at the start. Study the diagram carefully and answer the following questions : Redraw the diagram to show the result of the experiment after a few hours.

The diagram given belwo represents a system in the human body. Study the diagram and answer the following question: Name the two hormones secreted by 1.

The diagram given belwo represents a system in the human body. Study the diagram and answer the following question: Mention the surgical methods of contraception in 1. Human males 2. Human females.

Given below is a diagram depicting a defect of the human eye. Study the same and then answer the questions that follow: Name the defect shown in the diagram.

Given below is a diagram representing a stage during the mitotic cell division। Study the diagram and answer the following questions : Identify the stage by giving a suitable reason.

The diagram given below is an external view of the human brain. Study the same and answer the questions that follow : State the main functions of the parts labelled A and B.

The diagram given below is an external view of the human brain. Study the same and answer the questions that follow : State the main functions of the parts labelled A and B.

The diagram given below shows a section of a human kidney. Study the diagram carefully and answer the questions that follow : Label the parts numbered 1 to 4.

Study the diagram given below and answer the questions that follow: Give the composition of expired air.