Diego is studying compost. He conducted an experiment to see how moisture levels affect the breakdown of organic materials in compost piles. Diego found that adding 1 L of water per 10 kg of dry matter caused the compost to break down at the fastest rate, but adding more than 1 L caused decomposition to slow down. Which of the following questions do these results lead to? I. Why does adding more than 1 L of water per 10 kg cause decomposition to slow down? II. Does this ratio of water to dry matter hold true for all organic materials being composted? III. Why should anybody want to start a compost pile? A. I, II, and III B. I only C. I and II only D. II and III only

Describe how an electric generator works

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

(me out over the last several centuries, scientists have made the following broad observations while investigating several branches of the life sciences: -the fossil record shows that different types of organisms have existed at different times in earth's history. -many organisms have similar body structures that seem to be adapted to different ways of living in their environment. -organisms of different species often share similarities in stages of embryonic development. -many species share genetic similarities, and almost all organisms use the same basic building blocks to construct proteins. -often, the extent of two species' similarities can be predicted from their geographic closeness to each other. -a great deal of change has been observed among species that have experienced strong selective pressures through many generations. scientists have carefully considered and rigorously tested the observations listed above. when scientists offer a of these observations, they are making 1.) testable explanation, deductive explanation 2.) scientific interference, scientific law