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Which gland forms the hormone melatonin?

Which phase of the cell cycle is depicted in this diagram?

Why are glaciers excellent sources of climate data?

Which term describes a microscope’s ability to produce a clear image?

Which of the following answers about the pH scale is false?

Compared to climate, weather refers to the conditions at which of the following?

Coffee has a pH of 5.0, while milk has a pH of 6.0. Which of the following statements is true? 

Which of the following ionic compounds includes a polyatomic ion?

A pot of water is placed on the stove. Heat is transferred from the burner to the pot by what process?

Describe the 5 main components of the digestive system and how a piece of food goes through the organ system from start to finish.