The process which is essential for the continuing survival of species is:
The type of reproduction which is necessary for evolution is:
The unicellular structure, responsible for asexual reproduction without fusion is:
The example of a stem that runs horizontally on the surface of the soil to produce vegetatively:
Plant stems that arise from buds on the base of parent plants are:
The type of seed production without fusion of male and female gametes is:
The female gametophyte of an angiosperm plant is:
The 3N zygote in angiosperms develops into:
The male gonads in rabbits are:
The female gametes are fertilized in the rear end of: