Answer:
Microbiological contamination refers to the non-intended or accidental introduction of infectious material like bacteria, yeast, mould, fungi, virus, prions, protozoa or their toxins and by-products. 1,2
Explanation:
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1. 2 servings2. 4 servings3.  810 calories.<em>Brainiest please.</em>
        
             
        
        
        
Answer:
Crust, mantle and core.
Water availability.
Volcanic eruptions.
Explanation:
The main similarities about Early earth and Modern earth is their layers of soil such as crust, mantle and core means that the both  Early earth and Modern earth are made up of these three layers. At that time water is present in huge amount while on the other hand, in Modern earth water is also present in large amount as compared to land. Volcanic eruptions occurs in both early and Modern earth.
 
        
             
        
        
        
Answer:
Explanation:
Remember, the 20 kinds of amino acids differ because of their R groups. These R groups also have different chemical bonding. There are R groups that form covalent bonds, some that form ionic bonds, and still others that form hydrogen bonds.