What is electricity ? Ashaking and moving of particles B heat transfer between objects touching C hot or cold an object is D flow of negatively charged particles

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

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Cells are adapted to preform specific functions. which of the following terms refers to this capability?