A dioecious flowering plant prevents both:
Autogamy and xenogamy
Autogamy and geitonogamy
Geitonogamy and xenogamy
Geitonogamy and xenogamy
B.
Autogamy and geitonogamy
An enzyme that can stimulate germination of barley seeds is
α-amylase
lipase
protease
protease
In a cereal grain the single cotyledon of embryo is represented by
coleorhiza
scutellum
prophyll
prophyll
Double fertilization is exhibited by
Gymnosperms
Algae
Fungi
Fungi
Attractants and rewards are required for
Anemophily
Entomophily
Hydrophily
Hydrophily