When two fish die, Fish A sinks to the bottom of a lake and fish b wakes up on the rocky lake shore. Why is a fossil more likely to form from the body of fish a than body of fish b?

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

What does the cell nucleus do or, how does it function?

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood