When a germ enters the body the immune system mounts up an army and defense system to destroy that germ. the body produces to you lock onto the germ also known as antigen

The 1.5 mile run test and the 12 minute swim test are considered as what kind of test ?

You isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent.i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious.ii. microscope.iii. culture the substance on nutritive medium, away from any plant cells.iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious.if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities? a) ib) iic) ii or iiid) iv

10. what is empathy? the tendency to compete within the family the ability to read another’s mind the tendency to think of yourself first the ability to understand another’s thoughts or feelings