Biology, 29.07.2019 04:30, xxxanitaxxx
When a scientist contrasts two or more objects what is he or she looking for? a. differences b. causes and effects c. changes d. errors which is it?
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 02:00, paiged55
Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.
Answers: 1
Biology, 22.06.2019 11:30, heavendl13
Which of the following does not make up ground substance of connective tissue? hyaluronic acid elastic fibers glycosaminoglycan proteoglycan
Answers: 3
When a scientist contrasts two or more objects what is he or she looking for? a. differences b. cau...
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