Why human beings are complex organism ?

Human is a complex organisms because humans are made up of trillion of cell and a lot of system and organ . Some of the major systems are blood circulatory systems, the skeletal system, the digestive system, the nervous system and the respiratory system.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

c. the initial amount of money placed in the savings account