Biogenous sediment is sediment created from the shells of organisms that were once alive. These shells contain substances such as calcium, silicon and phosphorus. However, these shells do not contain manganese. Therefore, the answer is A. manganese nodules.
Answer: D Root hair, Xylem, mesophyll.
Explanation: Root hair (bottom) Xylem (stem) Mesophyll (leaf)
Answer: <em><u>I belief its B. A scientific law is supported by research. A scientific theory is only an educated guess.</u></em>
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<em>-Like theories, </em><em><u>scientific laws</u></em><em> describe phenomena that the scientific community has found to be provably true. Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation, where as </em><em><u>theories</u></em><em> describe how the phenomenon happens.</em>
