For which of the following flowers, complete autogamy is rather rare

Which of the following set of plant shows autogamy ?

Which of the following set of plant shows autogamy ?

Choose the incorrect statements I In a normal bisexual flower, complete autogamy is rather rare II. All plants having cleistogamous flowers are invariably autogamous lll Wind pollination is common in grasses IV. Hydrophily is common in flowering plants. The correct answer is

Name the following: Two complete flowers.

Which of the following plants prevent autogamy but not geitonogamy?

In which of the following condition, autogamy is prevented but not geitonogamy ?

Which of the following plants prevent autogamy but not geitonogamy?

In which of the following condition, autogamy is prevented but not geitonogamy ?

Which of the following belongs to rare species?