What differences can you detect between the structures of dehiscent and predehiscent anthers?

What is the pore in ovule through which the pollen tube enters called?

How does skunk cabbage heat its inflorescence?

What are two ways in which pollen can be transported?

Many flowers have both anthers and pistils. What prevents self-pollination and later self-fertilization?

How and from where do cotyledons develop from for a bean seed?

Draw the labelled diagram of the following:(i) gram seed (ii) V.S. of maize seed

Where do pollination occurs in Cycas?

What do you understand by photoperiodism and vernalisation? Describe theirsignificance.

Match all the specimens (Genus and developmental stage) in which you expect to clearly see the following flower structures. Note some answers may be used more than once or not at all. pollen grains [Choose ] megasporangium V [ Choose ] Lilium: Young aMature Anthers Lilium: Young Ovary microspore mother cells Lilium: Mature Ovary Lilium: Mature Anthers Lilium: Young Anthers ovule Lilium: Young and Mature Ovary MacBook Pro Search or type URL @ # & 2 3 个