What is the structure and function of the typical flower?
The flower is a short stem whose leaves are modified to form different parts of the flower, It is the organ of sexual reproduction in flowering plants, It arises from a floral bud that...
Tagged: Pollen grains
The structure of the sperm in the male reproductive system
The sperms The testes of the adult human male produce about 2 billion sperms per day , the lifetime of a single sperm inside the female vagina ranges from 2 to 6 hours, this...