There are many reasons why the use of oil needs to be managed carefully. Which of the following is not one of these reasons? A- burning oil contributes to acid rain and the greenhouse effect

B- Oil was created by plants and animals

C- Oil spills at sea babe killed many marine animals

D- There are only limited supplies of oil in the earth

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?