Why is it important for soil to contain nitrogen , phosphorus and potassium? Why is it important to fix soil that is lacking in theses nutrients ?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides

Nkentucky, intoxicating beverages (beer, whiskey, wine, etc.) are involved to some extent in approximately % of collisions fatal to pedestrians.