Answer: A
Explanation: Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow, and lets them get rid of waste products. This table shows examples of substances required by cell and associated waste products.
<span>The lab equipment used to allow for the growth of microorganisms without the aid of oxygen are petri dishes. They are air-tight, short, round disk shaped dishes with a lid.</span>
<span>CPT code stands for Current Procedural Terminology. Medical providers use specific codes to report the procedure and/or services performed on a patient. This allows the insurers to know how much to reimburse the provider. The CPT code for this particular situation would be 88173.</span>
The nitrogen in the air cannot be used by producers and consumers. It must be fixed or converted by bacteria in the ground into a useable form for plants called nitrates. Some plants called legumes (beans and clover) actually have bacteria in their roots.
