ADD NOTE QUESTION GUIDE
3. Refer to the food chain diagram below. A disease strikes the hawk population, killing a
significant percentage of the birds. How would the mouse population in this ecosystem be
affected?
The number of mice would increase.
O
The number of mice would decrease.
The number of mice would initially decrease, then increase
dramatically.
The number of mice would not change.
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How will technology impact medicine in the future?

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.