Explain the interrelationship between the Elodea plant and paramecia in a pond ecosystem?

At which location in earth’s interior does the top density continue to increase as thickness decreases?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%