Multiple Choice QuestionsWhorled, simple leaves with reticulate venation are present in
Calotropis
Neem
China rose
China rose
In unilocular ovary with a single ovule, the placentation is
marginal
basal
free central
free central
Coiling of garden pea tendrils around any support is an example of
thigmotaxis
thigmonasty
thigmotropism
thigmotropism
Which one of the following is a xerophytic plant in which the stem is modified into the flag green and succulent structure?
Opunita
Casuarina
Hydrilla
Hydrilla
A.
Opunita
opuntia is a plant growing in dry and xeric habitats.In this, the stem, having several nodes and internodes is modified into flat, fleshy, thick green, leaf-like structure called phylloclades. Phylloclade performs the function of photosynthesis like a leaf and also stores food leaves get modified into spines which help to reduce transpiration.
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous by
the absence of secondary xylem
the absence of secondary phloem
the presence of cortex
the presence of cortex
A fruit developed from hypanthodium inflorescence is called
hesperidium
sorosis
syconus
syconus
Switch
is that of
