A flower having both pistol and stamen (female and male respectively.)
A flower not having both pistol and Stamen (female and male) parts.
A flower having all four whorls: Pistol (female), Stamen (male), Petals (collectively termed corolla), Sepals (collectively calyx).
All of the small leaf like petals (sepals) on the layer below the petals of the flower.
All of the petals on a flower.
The Corolla and the Calyx together. (petals and protective sepals of flower)
The first leafs a plant sprouts with from seed. The word behind the terms: monocot and Dicot.
Four types of Plant tissues
Vascular tissues (transport), Dermal tissues (protect), Meristem (young green growth :), Ground (Roots).