Ascientist estimated that a mixture would need 5 milliliters of a chemical to balance. the actual amount needed was 7 milliliters. what was the percent error of the scientist's estimation?

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

What are ways that ordinary people can to keep antibiotic resistance from getting worse?

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.