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A person drove from 8:00 AM Tuesday to 5:00 PM Wednesday, covering a total of 396 miles. On Tuesday, he stopped for a 30-minute lunch and then slept overnight starting at 7:00 PM Tuesday, resuming driving at 5:00 AM Wednesday. On Wednesday, he again took a 30-minute lunch break. What was his average driving speed in miles per hour?
Which sentence is grammatically correct?
At the end of which phase of the cell cycle do chromosomes first become clearly visible (condensed) under a light microscope?
Which of the following is an example of a cell created by meiosis?
Which of the following structures is part of the upper respiratory system?
Which of the following is NOT a product of photosynthesis?
Why does increasing the surface area of reactants or catalysts increase the rate of a reaction?
Which of the following statements about atoms is FALSE?
How does photosynthesis contribute to the carbon cycle?
What is the purpose of the "air spaces" within the middle ear?
The human skull contains about how many bones?
Which of the following structures in the retina is NOT correctly matched to its function?
What is the function of the rough endoplasmic reticulum?
A scientist grows one group of plants with music played daily and one group without, for 30 days. Plants grown with music grew to an average height of 6 inches, while plants grown without music grew to an average height of 2.3 inches. Which of the following is the scientist's correct conclusion?