It takes you 15 minutes to drive 6.0 miles in a straight line to the local hospital. it takes 10 minutes to go the last 3.0 miles, 2.0 minutes to go the last mile, and only 30 seconds (= 0.50 minutes) to go the last 0.50 miles. what is your average velocity for the trip? take the positive xx direction to be from your starting point toward the hospital.

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

You have planned a menu for an 8-year-old boy. it consists of a roast chicken sandwich, fruits, and milk. which nutrient have you missed? a. protein b. vegetables c. dairy d. grains

Which of these the trachea keep food from getting into the lungs? question 17 options: larynx pharynx pituitary gland epiglottis