What kind of model would you use to represent a human heart

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

Many 1. why should teens be aware of health issues such as healthy sexuality, dealing with conflict, healthy decision making and cpr? 2. explain why in the gym these following rules are very importanta. wearing the proper outfit/equipmentb. make sure people around you are aware c. check for hazardsd. make sure all the equipment is set up properly e.make sure to know where the nearest first aid kit/aed is3. pick a sport out of the following and volleyball, basketball, soccer, ringette, badminton.a) what are the 3 most important aspects/skills to learn in order to perform this activity well? b) explain how each aspect/skill is important when playing the game.c) describe 2 points of strategy you could use to you be successful at this activity.

How do you measure the intake or servings of the different food groups of myplate? grains and protein foods are measured in terms of . intake of fruits and vegetables is measured in terms of . men and women in the range of 19 to 30 years of age must consume at least of fruits.