In 1968 a couple accused a hospital of switching their baby with another. DNA fingerprinting did not exist at this time so the hospital traced the blood types of the family in order to determine if a mistake was made. The mother had type A blood the father had type AB blood and the baby had type O blood
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What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.
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What is any method of measuring the age of an object or event in years, such as using atomic half-life?
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Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates
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Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.
Answers: 2
In 1968 a couple accused a hospital of switching their baby with another. DNA fingerprinting did not...
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