Differentiation
Are You Ready To Be A Parent?. Fertilization (Conception) Each life begins with 2 cells (XX or XY) Ovum (X) Sperm (X or Y) 1 egg is released from the.
Pregnancy, Development and Lactation Chapter 18. Species Development Species can only be perpetuated if pregnancy, development of offspring and lactation.
Reproductive System
Cells. Cell Theory All organisms are composed of one or more cells Cells are the smallest units of life All cells come from pre-existing cells.
Cloning, Stem Cells, and Surrogate Motherhood
C HAPTER 19 Pregnancy, Birth, and Childhood. L IFE C YCLE During sexual intercourse, sperm from the man are deposited into the vagina The sperm swim through.
Pregnancy
Conception And Pregnancy
Differentiation and development
Pregnancy and the Stages of Pregnancy. Stages of Pregnancy Slide Show regnancy_pictures_slideshow/article.htm.
