The presence of cilia, an oral groove, and food vacuoles, and the absence of chloroplasts in a unicellular organism indicate that the organism carries on
sexual reproduction
autotrophic nutrition
extracellular digestion
heterotrophic nutrition
Sometimes sepals are modified into hairy structures which are useful in dispersal of seeds. These are called
Dispersal by explosive fruits is shown by
The fruit in Datura is
Assertion : In hemianatropous ovule, the funicle lies parallel to body of ovule.
Reason : Here, body of ovule is rotated by $90^o$.