State True or False :
A Cleistogamous flower remains closed to help self -pollination.

State True or False : (-3)^(4)=-12

List three strategies that a bisexual chasmogamous flower can evolve to prevent self-pollination (autogamy).

State true (T) or false (F).

State True or False : One million =10^(7)

State True or False : The square root of 1521 is 31.

State True or False: A ratio can be equal to 1.

State True or False: Mean can never be a fraction.

Identify the correct pair of statements (i) White kernel of Coconut is a free nuclear endosperm (ii) In dioecious plants, autogamy is prevented but geitonogamy occurs (iii) Cleistogamous flowers are always self pollinated (iv) Castor is an endospermic seed.

State True or False: corr( x,x ) = 0