Why is there a mysterious reddish-brown substance in the tap water of Westfield? Remember to explain how your evidence supports your claim to make your argument as complete and convincing as possible.

2. what process do mrna and trna work together to complete? (3 points)

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material