11749052
Descripción
Test por Christina Marshall, actualizado hace más de 1 año
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Creado por Christina Marshall
hace casi 7 años
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Pregunta 1
Pregunta
A bird maintains a relatively stable internal body temperature on a cold day. This is an example of
Respuesta
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Adaption
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Evolution
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Metabolism
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Homeostasis
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Development
Pregunta 2
Pregunta
Populations of organisms change over the course of many generations. Many of these changes result in increased survival and reproduction. This phenomenon is
Respuesta
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Evolution
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Homeostasis
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Development
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Genetics
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Metabolism
Pregunta 3
Pregunta
A biologist is studying the living organisms in a valley in western Colorado. She is studying
Respuesta
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an Ecosystem
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a Community
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the Biosphere
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a Viable Land Mass
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a Population
Pregunta 4
Pregunta
Which of the following is an example of horizontal gene transfer?
Respuesta
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the transmission of an eye color gene from father to daughter
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the transmission of a mutant gene causing cystic fibrosis from father to daughter
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the transmission of a gene conferring pathogenicity (the ability to cause disease) from one bacterial species to another
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the transmission of a gene conferring antibiotic resistance from a mother cell to its two daughter cells
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all of the above
Pregunta 5
Pregunta
The scientific name for humans is Homo sapiens. The name Homo is the _________ to which humans are classified.
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Kingdom
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Phylum
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Order
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Genus
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Species
Pregunta 6
Pregunta
The complete genetic makeup of an organism is called its
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Genus
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Genome
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Proteome
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Genotype
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Phenotype
Pregunta 7
Pregunta
After observing certain desert plants in their native environment, a researcher proposes that they drop their leaves to conserve water. This is an example of
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a theory
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a law
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a prediction
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a hypothesis
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an assay
Pregunta 8
Pregunta
In science, a theory should
Respuesta
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be equated with knowledge
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be supported by a substantial body of evidence
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provide the ability to make many correct predictions
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do all of the above
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b and c only
Pregunta 9
Pregunta
Conducting research without a preconceived hypothesis is called
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discovery-based science
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the scientific method
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hypothesis testing
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a control experiment
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none of the above
Pregunta 10
Pregunta
What is the purpose of using a control group in scientific experiments?
Respuesta
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A control group allows the researcher to practice the experiment first before actually conducting it.
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A researcher can compare the results in the experimental group and control group to determine if a single variable is causing a particular outcome in the experimental group.
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A control group provides the framework for the entire experiment so the researcher can recall the procedures that should be conducted.
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A control group allows the researcher to conduct other experimental changes without disturbing the original experiment.
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All of the above are correct.
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