BSC 1005 exam 1 || with 100% Error-free Solutions.
A hypothesis is a statement that correct answers can be tested and proven false
Where are the most reliable scientific results published? correct answers in peer-reviewed scientific journals
The scientific process from beginning to end can be outlined as: correct answers observe, question, test, analyze, and conclude.
A hypothesis can be everything EXCEPT correct answers proven true.
What are the steps used in the process of a scientific study? correct answers making initial observations that generate questions, studying the literature, generating hypotheses that are both testable and falsifiable, testing the hypothesis with experiments and analyzing the data, and making conclusions that are supported by data
If the results of an experiment contradict the hypothesis, you have _____ the hypothesis. correct answers falsified
A placebo is given to the correct answers Control Group
A study is conducted to see if walking reduces joint stiffness in people suffering from arthritis of the knee. Half the participants are instructed to walk an additional 1 mile every day, while the other half are told to go about their normal daily routine with no additional exercise. In this study, the group that walks an extra mile every day is referred to as the correct answers experimental group.
A scientific theory is correct answers a hypothesis that has been rigorously tested and never been
disproven.
Increasing a sample size correct answers Provides more reliable data
In a clinical trial with 400 subjects, the most reliable results would be obtained if ____ subjects were in the experimental group and ____ in the control. correct answers 200;200
Increasing Sample sizes increases correct answers The reliability of data
A correlation in a scientific study indicates correct answers a possible link between two variables
Which published scientific data would be most reliable? correct answers A peer-reviewed Scientific journal
Rank the following in order from most reliable to least reliable sources of information. correct answers scientific journals > magazine article written by scientist > magazine article written by journalist > public opinion Epidemiologists correct answers study the incidence of diseases and risk factors in populations.
You should not use just one epidemiological study to make policy decisions because correct answers diseases are complex.
all variables cannot be controlled in one study. sample size can affect accuracy. one population may not be representative of the entire population.
The study of the incidence of disease in a population that cannot be directly manipulated is called
correct answers Epidemiology
The periodic table is a chart describing correct answers the known elements ordered by their atomic number.
The smallest unit of an element that still retains the property of an element is correct answers an atom
The ______ is the smallest unit of matter that exhibits the characteristics of an element and cannot be chemically divided into a smaller unit. correct answers Atom
The atomic particles responsible for forming bonds with other atoms are correct answers electrons
An organic molecule must have correct answers a hydrogen-carbon bond
Organic molecules are defined as having correct answers A carbon backbone and at least one carbon-hydrogen bond
DNA, deoxyribonucleic acid, has a "backbone" of sugars and correct answers phosphate groups
Nucleotides are composed of correct answers phosphate, sugar, base
The monomers of proteins are correct answers amino acids
When a plant bends toward sunlight, the bending is an example of which characteristic of life? correct answers Responding to their environment
The ability of living organisms to maintain a stable internal environment is termed correct answers Homeostasis
What is not a necessary characteristic of life correct answers ability to move around in the environment
Maintaining a separate and distinct internal environment from the external environment is called correct answers Homeostasis
A hypothesis is a statement that correct answers can be tested and proven false
Where are the most reliable scientific results published? correct answers in peer-reviewed scientific journals
The scientific process from beginning to end can be outlined as: correct answers observe, question, test, analyze, and conclude.
A hypothesis can be everything EXCEPT correct answers proven true.
What are the steps used in the process of a scientific study? correct answers making initial observations that generate questions, studying the literature, generating hypotheses that are both testable and falsifiable, testing the hypothesis with experiments and analyzing the data, and making conclusions that are supported by data
If the results of an experiment contradict the hypothesis, you have _____ the hypothesis. correct answers falsified
A placebo is given to the correct answers Control Group
A study is conducted to see if walking reduces joint stiffness in people suffering from arthritis of the knee. Half the participants are instructed to walk an additional 1 mile every day, while the other half are told to go about their normal daily routine with no additional exercise. In this study, the group that walks an extra mile every day is referred to as the correct answers experimental group.
A scientific theory is correct answers a hypothesis that has been rigorously tested and never been
disproven.
Increasing a sample size correct answers Provides more reliable data
In a clinical trial with 400 subjects, the most reliable results would be obtained if ____ subjects were in the experimental group and ____ in the control. correct answers 200;200
Increasing Sample sizes increases correct answers The reliability of data
A correlation in a scientific study indicates correct answers a possible link between two variables
Which published scientific data would be most reliable? correct answers A peer-reviewed Scientific journal
Rank the following in order from most reliable to least reliable sources of information. correct answers scientific journals > magazine article written by scientist > magazine article written by journalist > public opinion Epidemiologists correct answers study the incidence of diseases and risk factors in populations.
You should not use just one epidemiological study to make policy decisions because correct answers diseases are complex.
all variables cannot be controlled in one study. sample size can affect accuracy. one population may not be representative of the entire population.
The study of the incidence of disease in a population that cannot be directly manipulated is called
correct answers Epidemiology
The periodic table is a chart describing correct answers the known elements ordered by their atomic number.
The smallest unit of an element that still retains the property of an element is correct answers an atom
The ______ is the smallest unit of matter that exhibits the characteristics of an element and cannot be chemically divided into a smaller unit. correct answers Atom
The atomic particles responsible for forming bonds with other atoms are correct answers electrons
An organic molecule must have correct answers a hydrogen-carbon bond
Organic molecules are defined as having correct answers A carbon backbone and at least one carbon-hydrogen bond
DNA, deoxyribonucleic acid, has a "backbone" of sugars and correct answers phosphate groups
Nucleotides are composed of correct answers phosphate, sugar, base
The monomers of proteins are correct answers amino acids
When a plant bends toward sunlight, the bending is an example of which characteristic of life? correct answers Responding to their environment
The ability of living organisms to maintain a stable internal environment is termed correct answers Homeostasis
What is not a necessary characteristic of life correct answers ability to move around in the environment
Maintaining a separate and distinct internal environment from the external environment is called correct answers Homeostasis
