Why are traits acquired during life-time of an indicidual not inherited?

What are the main stages during the life cycle of a plant?

How many teeth appear twice during the life span of an individual?

Why we shiver during winter months?

Why are polar bodies formed during oogenesis but not during spermatogenesis?

The half - life period of radioactive element A is the same as the mean life time of another radioactive element B. Initially both of them have same number of atoms. The radioactive element B decays faster than A. Explain, why.

Why are menstrual cycles absent during pregnancy?

What are true breeding line's that are used to study inheritance pattern traits in plants