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17 Cards in this Set
- Front
- Back
The technique called _____ fertilization has been used for about 30 years to assist couples who have had difficult conceiving a child on their own.
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(in vitro)
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In vitro fertilization is when the ________ is fertilized outside of the ___________.
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(egg,uterus)
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The _______ experiment was conducted by a graduate student in 1953 who demonstrated that the early Earth could have produced compounds, like amino acids, necessary for life.
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(Miller or Miller-Urey)
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The collision of _______ with Earth has been shown to cause the formation of peptides, the chemicals which make up proteins.
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(comets)
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Three basic characteristics of life include the abilities to ______, ______, and _______.
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(use energy, reproduce, evolve)
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The formation of _______ , which surround all cells and act as a container for life, has been accomplished by scientists interested in the formation of early life on Earth.
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(membranes)
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Once all elements in the center of a star have been utilized for energy, the star reaches the ______ barrier.
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(iron)
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In order for heavy elements to be produced, a star must ______, which generates tremendous heat allowing for the formation of many of the elements found I the universe.
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(explode)
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A ________ can be made by stringing together the correct sequence of nucleotides together.
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(gene)
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The 3 requirements of life include energy for growth and change, to___________, & to___________
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(reproduce, evolve (in either blank))
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Stars are formed by the fusion of 3 ________ nuclei to produce carbon.
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(helium)
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A star explosion, know as a ____________ __________, occurs when ________ cannot be fused further.
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(super nova, iron)
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All of the hydrogen, carbon, oxygen, nitrogen, calcium, and iron in our body come from _________ _________ that was released by stars upon their death.
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(star dust)
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Living organisms are composed of 49%___________, 24%__________, and 24% oxygen.
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(hydrogen, carbon)
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The theory that life arose on Earth from organic building blocks that were present in the water on Earth’s surface is known as the __________ hypothesis.
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Abiogenesis
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In her experiments, Jennifer Black demonstrated that the intense heat and pressures meteorites experience during entry into earth’s atmosphere actually causes amino acids in a meteorite to form __________.
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Polypeptides
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Energy powers life through the inter-conversion of water and carbon dioxide to form __________.
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Carbohydrates
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