Answer:
1. C
2. D
3. A
4. B
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature. A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
1. The male reproductive cell is known as sperm. It is known as the gamete of a male living organism and as such it is responsible for the fertilization of the egg or ovum of a female living organism.
2. The external sac of skin that holds the testes is called scrotum. It is ideally a housing system for the testes and as such offers some form of protection to the testes.
3. The hormone produced by the ovaries is referred to as estrogen. Estrogen are generally secreted by the female ovary and it helps to facilitate the development and management (regulation) of female sex characteristics, as well as their reproductive organs.
4. The male glands which produce the sperm cells and the male sex hormone is called testes.
