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Hace 1 día · Human embryonic stem cells involve ethical issues of life and death (whether or not an embryo is actually a living thing or just a collection of cells). Most techniques for harvesting, or gathering an embryonic stem cells cause destruction of the embryo. 3 important ethical issues about Stem Cell research are: 1.
Hace 1 día · Study with Quizlet and memorize flashcards containing terms like Define gestation, Distinguish among embryonic, fetal, and prenatal development, What is postnatal development? and more.
Study with Quizlet and memorize flashcards containing terms like The endoderm, mesoderm, and ectoderm develop during the ___ period, Which layer of embryonic cells eventually becomes the circulatory system, bones, and muscle?, The bag or envelope in which the developing embryo floats is called the ___. and more.
Study with Quizlet and memorize flashcards containing terms like which of the embryonic membranes develops into the fetal portion of the placenta?, why is a newborn at risk for dehydration and electrolyte imbalance?, what chemical stimulates the sperm's tail movement for propulsion through the uterus and uterine tube? and more.
Hace 1 día · Study with Quizlet and memorize flashcards containing terms like The trophoblast is, The endoderm, mesoderm, and ectoderm develop during the ______ period., Which layer of embryonic cells eventually becomes the circulatory system, bones, and muscle? and more.
Hace 1 día · An embryo grows into a multicellular organism made of a wide variety of cell types. How does the variation in cell types occur? Embryonic stem cells divide to produce all types of specialized cells.
Hace 1 día · Virtually all specialized cells of multicellular organisms a. contain less genetic material than less specialized cells of the same organism. b. have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells.
