Answer: to prevent inbreeding
Fertilisation or fertilization (see spelling differences) also known as generative fertilisation syngamy and impregnation is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Processes such as insemination or pollination which happen before the fusion of gametes are also sometimes informally called fertilization.
Flowering plant – Wikipedia
Unisexual male and female flowers on the same plant may not appear or mature at the same time or pollen from the same plant may be incapable of fertilizing its ovules. The latter flower types which have chemical barriers to their own pollen are referred to …
The flowering plants also known as Angiospermae (/ ˌ æ n dʒ i oʊ ˈ s p ɜːr m iː /) or Magnoliophyta (/ m æ ɡ ˌ n oʊ l i ˈ ɒ f ɪ t ə -oʊ f aɪ t ə /) are the most diverse group of land plants with 64 orders 416 families approximately 13 000 known genera and 300 000 known species . Like gymnosperms angiosperms are seed-producing plants .They are distinguished from …
This condition is seen in many common garden plants . A closer analogy to hermaphroditism in botany is the presence of separate male and female flowers on the same individual—such plants are called monoecious. Monoecy is especially common in conifers but occurs in only about 7% of angiosperm species . The condition also occurs in some algae.
A flower sometimes known as a bloom or blossom is the reproductive structure found in flowering plants ( plants of the division Magnoliophyta also called angiosperms).The biological function of a flower is to facilitate reproduction usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a …..