Conserving the quality of available water is a high priority world-wide. there are many countries whose water supply is reaching dangerous levels of contamination. for example, the longest river in china, the yangtze, is less than 5 years from death if nothing changes. the statements below are possible effects on the environment if the yangtze dies, which one is a positive effect on the environment?

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05