A serious pest of sweet potato whose larvae
destroy the foliage is

The fertility of soils under forest is sustained
mainly by

The Mendelian law of segregation states that
the characteristics which is hidden in an F1,
reappears in F2 generation in a ratio

The breed of sheep that can be found
throughout Nigeria is

A female cattle which has not had a calf or
developed into the mature form of a cow is
referred to as