What molecular evidence have scientists gathered that supports the idea that all organisms have a common ancestor? SELECT AN ANSWER

Molecular clocks have proven this to be true.

DNA and RNA determine how organisms develop.

They know that the similarities and differences between the genomes confirm patterns of evolution.

All organisms have the same biochemical building blocks as one another.

What part of the plant has the most chloroplsts?

Defend or refute the argument that the government has too large a presence in the agriculture industry.

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