Question

Angiosperms have dominated the plant flora, primarily because of their
A. Power of adaptability in diverse habitat
B. Property of producing large number of seeds
C. Domestication by man
D. Nature of same pollination

Answer 1

Hint: Plant kingdom consists of various organisms that vary from simple liverworts to the giant redwoods. These are multicellular and rely on photosynthesis for their nutrition. The angiosperms include flowering plants that produce seeds and possess ovules enclosed in an ovary or fruit.

Complete answer:
We all are very well aware that angiosperms are the most recent as well as highly evolved plants. They are said to have appeared around 130 million years ago. With almost around 250,000 species, they are present in abundance and are conspicuous in nature. Angiosperms are the dominant green flowering plants of the present day vegetation.
All the flowering plants come under angiosperms. These are seed bearing and well acclimatized with the terrestrial life and show their presence in diverse habitats from the cold tundra to hot tropical and even in the desert areas. They even survive well in the aquatic habitat. These plants are represented by trees, shrubs and herbs and they either are monocotyledons and dicotyledons.

From the above discussion it is quite clear that option (A) is our right answer.

Note:
Angiosperms possess a well differentiated body into roots, stems and leaves. They have the presence of a highly developed vascular tissue system with vessels in the xylem and the companion cells in the phloem. Their character feature is double fertilisation where one produces embryo or new sporophyte while the other forms primary endosperm cells.