Which is an indication that a man might be choking? He puts his hands on his stomach.
He has an increase in his body temperature.
He loses consciousness.
He experiences severe shivering.

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

(amoeba sisters video recap: pedigrees and need

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?