Biogeochemical Cycles-Nitrogen/Phosphorus

Organisms use nitrogen to form: carbohydrates and lipids, proteins and lipids, lipids and nucleic acids, proteins and nucleic acids

The most abundant gas within the atmosphere is: carbon., hydrogen., oxygen., nitrogen.

The conversion of nitrogen gas to a form that can be used by plants is called

Where do animals get nitrogen from?

Where is the majority of carbon dioxide on our planet dissolved?

What are the main ingredients of most fertilizers?

Building proteins and DNA is the reason organisms need what substance? Options: Water, Carbon, Nitrogen, Calcium

This is released by the weathering of rocks. It is known as a long term cycle.

How nitrogen is "fixed" into useable form for plants?

Which of the following statements is true of the phosphorus cycle? Options: Phosphorus enters the atmosphere as phosphates., The phosphorus cycle utilizes the processes of erosion, and weathering., Phosphates are used in carbohydrate and glucose storage., The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.