How many stars are in our solar system?

there are over 100 billion stars in our galaxy.

Pedigree chart

Explanation:

Pedigree chart is the tool which can be used to track the organisms which are the carriers of a specific trait through several generations. It is a diagram which depicts the occurrence of a particular phenotypic character among the members of the same family as the phenotypic trait is passed on from the one generation to the next generation due to sexual reproduction. It is typically used to show occurrence of a particular disease, disorder, and an observable morphological trait in a family, beginning from the history to the present condition. It is commonly used to show family history for the humans, dogs and race horses.