Explain how the prunnett square can be used to predict the probability that an offspring from such a cross has a given phenotype (for example yellow, wrinkled seed) explain your answer with reference to mendel’s law of independent assortment

A punnet square is used to visually see the dominant and recessive traits. Mendel's law says that alleles pair independently during the formation of gametes (aka sex cells). This means that traits are transmitted to offspring independently of one another.

To kill bacteria from our body especially from stomach

The short-term effect of tar on the body is increased blood pressure.