" How are seeds advantageous to flowering plants? "

How is parthenogenesis advantageous to some plants?

Write one advantage and one disadvantage of cleistogamy to flowering plants.

On germination a seed first produces shoots with leaves, flowers appear later. How is this advantageous to the plant?

Process of double fertilisation is advantageous to angiospermic plants. How?

What are the advantages of the following in the flower to the plant concerned? Smooth and light pollen.

What are the advantages of the following in the flower to the plant concerned? Brightly coloured petals