The data show that both paper grocery bags and plastic grocery bags cause
harm to the environment. As a result, the scientists who study this issue are
most likely to:
A. revise their studies to focus on making the production of paper
and plastic less harmful.
O
B. write new laws about when and where people can use paper bags
and plastic bags.
C. blame the scientists whose research led to the use of paper and
plastic in grocery bags.
O
D. change the data on the amount of natural resources used to make
paper and plastic.

Which of the following represents a negatively charged ion? of t 7

Donde se encuentra el adn nuclear en un organismo eucariota?

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.