Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced so that at fertilization a diploid zygote forms. This tutorial is an in-depth study guide regarding male and female reproductive physiology...
Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most important in regards to the regulation of growth and development. Know the different hormones of animals in this tutorial...