double fertilization animation

Reproduction..

Optics..

>hermaphrodite . However, fertilisation is between the gametes of different individuals. Most of the animals are unisexual with an individual only producing either male or female gametes. The male gamete of one individual fertilizes with the female gamete of another individual t..

Meiosis is a cell division occurs in reproductive cells (gametes). The male gamete is known as the sperm in animals and the female gamete is known as the ovum (egg). These gametes, after they are formed, have no future unless they unite to form a zygote, which then grows into an adult org..

This type of cell division occurs in reproductive cells (gametes). The male gamete is known as the sperm in animals and the female gamete is known as the ovum (egg). These gametes, after they are formed, have no future unless they unite to form a zygote, which then grows into an adult org..

In this process semen is collected from a bull of desirable breed and stored at freezing temperature. This semen is injected into the vagina of cows during the period of heat of the animal, for fertilization. This method has many advantages: As many as 3000 cows can be f..

The atmospheric temperature governs the type of biodiversity, fertility of soil, the hydrological cycle and many other abiotic and biotic parameters of our planet. It acts as a resource - in the sense that optimum temperature promotes the production and productivity of many natural resou..

>The most significant aspect of angiosperm reproduction is the phenomenon of double fertilization and triple fusion. Kingdom Metazoa includes all the multicellular animals. They can be distinguished broadly into invertebrates and chordates. Invertebrates account for ne..

. For example, more land was converted to cropland in the thirty years since 1950 than had been converted in the whole of the period 1700 to 1850 (The Biodiversity Synthesis Report in the UN Millennium Ecosystem Assessment project). Forty percent of the earth's land surface is now used to grow crop..

. Each carpel bears many ovules each of which contain one egg, the female gamete. Each ovule bears the embryo sac that contains the egg and the polar nuclei in addition to other structures. Transfer of pollen grains to the stigma is called pollination. Pollination may be self-pollination or cross-p..