Double fertilization is exhibited by

• Gymnosperms

• Algae

• Fungi

• Fungi

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

Attractants and rewards are required for

• Anemophily

• Entomophily

• Hydrophily

• Hydrophily

A dioecious flowering plant prevents both:

• Autogamy and xenogamy

• Autogamy and geitonogamy

• Geitonogamy and xenogamy

• Geitonogamy and xenogamy