Turn off the lights when not in use, turn off all appliances when not used, remove your phone from the charger when its at full charge, heaters and air conditioners should be turned off when not in use, and using a regular sharpener rather than an electric one. Hope this helps. :)
Answer:
1) The human reproductive organ that produces sperms and also secretes hormone is testis.
2) The hormone testosterone is secreted which is responsible for the development of male secondary seksual characters such as body hair, muscles and bone mass.
"Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid. The matched pairs of chromosomes in a diploid organism are called homologous chromosomes."
The answer is <span>B) 0.25 </span>
