Why Gravitational potential energy is positive since Gravity acts downward and body is lifted upwards as per books explanation, then P.E should be -mgh. Explain Breifly

The cell theory states that

• A. All cells have nuclei.
• B. All cells are totipotent.
• C. Cells reproduce by mitosis.
• D. Cells are the basic structural units of living beings.

List the point of difference between Homogeneous and Heterogeneous mixtures

Turmeric is a natural indicator. On adding its paste to acid and base separately, which color is observed?

A. yellow in both acid and base

B. yellow in acid and red in the base

C. Pink in acid and yellow in the base

D. Red in acid and blue in the base.

Which is the smallest organ in the Body?

Who is called the father of Ayurveda?