Sixteen chemical elements are important in which carbon, hydrogen, and oxygen are supplied by air and water, which comprise about 98% of the fresh weight of the plant, at least 13 other chemical elements, called the essential inorganic nutrients, are needed for plant's growth and survival.he inorganic material obtained from soil which are used as raw material by plants are called mineral nutrients. Absorption utilization and assimilation of inorganic compound or minerals by plants for synthesis of essential material for their growth, development, structure and physiology is called mineral nutrition.
show more Sperm production in males occurs: (1) with the meiotic process. (2) in the testes. (3) in the seminiferous tubules. (4) throughout the life of the male. (5) all of these are correct. Which of the following is primarily responsible for providing mucous secretions to lubricate the path of sperm... show more Sperm production in males occurs: (1) with the meiotic process. (2) in the testes. (3) in the seminiferous tubules. (4) throughout the life of the male.
Human diploid cells contain two sets of 23 chromosomes for a total of 46 chromosomes. When sex cells unite during fertilization, the haploid cells become a diploid cell. The production of sperm cells is known as spermatogenesis. This process occurs continuously and takes place within the male testes. Hundreds of millions of sperm must be released in order for fertilization to take place. The vast majority of sperm released never reach the ovum.