Biology, 06.05.2021 21:20, ScuddyG7164
20 points for each valid answer, thanks
Katie designed an experiment using a paint roller pan, sand, and water. The steps of the experiment are listed below.
: Put 3 inches of moist sand on a paint roller pan.
Make a beach by scooping the sand toward the higher portion of the pan.
Pour water into the deeper end of the pan.
Use a straw to blow (simulate wind) on the water for 2 minutes to create waves.
Observe how the sand is displaced by the waves.
Katie's model most likely represents the interactions between the (4 points)
A. atmosphere, ocean, and geosphere
B. geosphere, ocean, and biosphere
C. atmosphere, ocean, and biosphere
D. cryosphere, biosphere, and ocean
Answers: 3
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 06:00, devoncruz23
During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.
Answers: 2
20 points for each valid answer, thanks
Katie designed an experiment using a paint roller pan, san...
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