Biology, 29.06.2021 16:10, BallerAlert1644
Scientific investigations begin by asking questions that can be tested, measured, or both. Which question meets this criterion?
What opinions do teenagers have about vaccines?
Do hand sanitizers decrease a person’s risk of a bacterial infection?
Is buying organic food an ethical choice?
How hard is it for people to reduce stress in their lives?
Answers: 1
Biology, 21.06.2019 20:00, zaratayyibah
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
Answers: 1
Biology, 22.06.2019 05:00, emmalucilleblaha1995
Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation
Answers: 1
Biology, 22.06.2019 05:50, lashondrascott
Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?
Answers: 1
Scientific investigations begin by asking questions that can be tested, measured, or both. Which que...
Business, 03.09.2020 22:01
Mathematics, 03.09.2020 22:01
Mathematics, 03.09.2020 22:01
Mathematics, 03.09.2020 22:01