Nurturing Life Sciences
#Id: 10027
#Id: 8145
#XL - Q Biochemistry
#Id: 9972
#XL - T Zoology
#Id: 9472
#Id: 10756
#XL - R Botany
The flower
Perfect flowers have both an androecium and a gynoecium
Imperfect flowers have one or the other and are termed pistillate if they contain female reproductive structures or staminate if only male reproductive structures
#Id: 7750
The greater the effective nuclear charge the more tightly an electron is held in by the nucleus because there is less electron shield between the valence electrons and the nucleus, and so, the smaller the radius.