Back to AI Flashcard MakerBiology /Biology – Scientific Method Part 1
A controlled experiment is one in which A - there are at least two groups, one of which does not receive the experimental treatment. B - there is one group for which the scientist controls all variables. C - there are at least two groups, one differing from the other by two or more variables. D - the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data. E - the experiment is repeated many times to ensure that the results are accurate.
A
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Key Terms
Term
Definition
A controlled experiment is one in which
A - there are at least two groups, one of which does not receive the experimental treatment.
B - there is one group for which the scientist controls all variables.
C - there are at least two groups, one differing from the other by two or more variables.
D - the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
E - the experiment is repeated many times to ensure that the results are accurate.
A
A controlled experiment is one that
A - is repeated many times to make sure the results are accurate.
B - proceeds slowly enough that a scientist can make careful records of the results.
C - tests experimental and control groups in parallel.
D - keeps all variables constant.
E - is supervised by an experienced scientist.
C
A localized group of organisms that belong to the same species is called a
A - population.
B - biosystem.
C - family.
D - community.
E - ecosystem.
A
A water sample from a hot thermal vent contained a single-celled organism that had a cell wall but lacked a nucleus. What is its most likely classification?
A - Fungi
B - Protista
C - Archaea
D - Animalia
E - Eukarya
C
All the organisms on your campus make up
A - an experimental group.
B - a community.
C - an ecosystem.
D - a population.
E - a domain.
B
An organism has been isolated from decomposing organic matter. This organism has a cell wall but no chloroplasts. How would you classify this organism?
A - domain Eukarya, kingdom Plantae
B - domain Eukarya, kingdom Protista
C - domain Eukarya, kingdom Fungi
D - domain Bacteria, kingdom Prokaryota
E - domain Archaea, kingdom Bacteria
C
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| Term | Definition |
|---|---|
A controlled experiment is one in which
A - there are at least two groups, one of which does not receive the experimental treatment.
B - there is one group for which the scientist controls all variables.
C - there are at least two groups, one differing from the other by two or more variables.
D - the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
E - the experiment is repeated many times to ensure that the results are accurate. | A |
A controlled experiment is one that
A - is repeated many times to make sure the results are accurate.
B - proceeds slowly enough that a scientist can make careful records of the results.
C - tests experimental and control groups in parallel.
D - keeps all variables constant.
E - is supervised by an experienced scientist. | C |
A localized group of organisms that belong to the same species is called a
A - population.
B - biosystem.
C - family.
D - community.
E - ecosystem. | A |
A water sample from a hot thermal vent contained a single-celled organism that had a cell wall but lacked a nucleus. What is its most likely classification?
A - Fungi
B - Protista
C - Archaea
D - Animalia
E - Eukarya | C |
All the organisms on your campus make up
A - an experimental group.
B - a community.
C - an ecosystem.
D - a population.
E - a domain. | B |
An organism has been isolated from decomposing organic matter. This organism has a cell wall but no chloroplasts. How would you classify this organism?
A - domain Eukarya, kingdom Plantae
B - domain Eukarya, kingdom Protista
C - domain Eukarya, kingdom Fungi
D - domain Bacteria, kingdom Prokaryota
E - domain Archaea, kingdom Bacteria | C |
Charles Darwin proposed a mechanism for descent with modification that stated that organisms of a particular species are adapted to their environment when they possess
A - non-heritable traits that enhance their reproductive success in the local environment.
B - non-heritable traits that enhance their survival in the local environment.
C - non-heritable traits that enhance their survival and reproductive success in the local environment.
D - heritable traits that decrease their survival and reproductive success in the local environment.
E - heritable traits that enhance their survival and reproductive success in the local environment. | E |
Darwin's finches, collected from the Galápagos Islands, illustrate which of the following?
A - vestigial anatomic structures
B - mutation frequency
C - the accuracy of the fossil record
D - adaptive radiation
E - ancestors from different regions | D |
Imagine there is a species-specific fishing regulation that mandates only adult fish of this species that are 75 cm or longer may be kept and shorter fish must be released. Based on your knowledge of natural selection, you would predict that the average length of the adult fish population will
A - gradually decline.
B - remain unchanged.
C - rapidly decline.
D - rapidly increase.
E - gradually increase. | A |
In a high school laboratory, which of the following constitutes an experiment?
I. learning to use a microscope by examining fixed specimens on slides
II. being able to examine swimming protists under a microscope
III. seeking to identify the pigments present in a leaf
IV. preparing root tips for examination by staining them
A - II, III, and IV
B - II and III only
C - II only
D - I only
E - III only | E |
In presenting data that result from an experiment, a group of students show that most of their measurements fall on a straight diagonal line on their graph. However, two of their data points are "outliers" and fall far to one side of the expected relationship. What should they do?
A - Do not show these points but write a footnote that the graph represents the correct data.
B - Change the details of the experiment until they can obtain the expected results.
C - Show all results obtained and then try to explore the reason(s) for these outliers.
D - Throw out this set of data and try again.
E - Average several trials and therefore rule out the improbable results. | C |
Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight to
A - oxygen.
B - kinetic energy.
C - carbon dioxide and water.
D - the energy of motion.
E - chemical energy. | E |
Prokaryotes are classified as belonging to two different domains. What are the domains?
A - Bacteria and Eukarya
B - Archaea and Monera
C - Bacteria and Protista
D - Eukarya and Monera
E - Bacteria and Archaea | E |
The application of scientific knowledge for some specific purpose is known as
A - technology.
B - inductive science.
C - pure science.
D - deductive science.
E - anthropologic science. | A |
The main source of energy for producers in an ecosystem is
A - light energy.
B - ATP.
C - kinetic energy.
D - thermal energy.
E - chemical energy. | A |