How do the characteristics of life apply to situations such as individuals on life support, organs on life support, frozen organisms (including embryos), genetically engineered organisms, test tube babies, and hybrids between computers and living things?
What will be an ideal response?
This is an open-ended question with no definite answer, but the student should be able to identify which (if any) characteristics of life are called into question with each of these examples. For example, should a frozen organism be considered alive if it is incapable of reproduction, movement, growth, etc., while frozen? The student should also recognize that although these characteristics seem simple on the surface, many of them are not black-and-white. For example, an individual on life support may not engage in reproductive activity, but might still produce eggs or sperm and thus be capable of reproduction.
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A. primers B. nucleases C. Okazaki fragments D. pyrophosphates E. DNA polymerases
Tubular secretion takes place in the ____
a. glomerulus b. Bowman’s capsule c. loop of Henle d. distal tubules e. collecting ducts
Integrins couple the matrix outside a cell to the cytoskeleton inside It.
a. true b. false
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