A blastosphere is another term for a blastula, an early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid.
The nucleus contains the 23 chromosomes of genetic material that combine upon fertilization and divide into a multiple-cell organism called the blastosphere, which goes on to become the fetus during pregnancy.
A Blastula is the usually spherical structure produced by cleavage of a zygote, consisting of a single layer of cells (blastoderm) surrounding a fluid-filled cavity (blastocoele). It is the early form of an animal embryo that develops from a morula. It is also called a blastosphere.
Zygote fungi is a phylum or ranking of fungi. It is also known as zygomycota. During sexual reproduction, zygote fungi produce resistant spherical spores.