Um, please only put an answer if you really know it, thank you) The graph below shows the results of a test performed by Ms. Pryor's class.

What was the independent variable for this investigation?
O the density of water

O the temperature of water

O the volume of water

O the density of different states of water

Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.

Why do carbohydrate molecules function so well as fuel for the body?

Which could be a pathway of food through an ecosystem