When ya look at the "college" thing im not really in college i messed up-

Explain how blood flows through the human heart. Be sure to include the words lung, valve, atrium, and blood in your answer.

Answer Key:

The heart has four chambers that blood collects. The upper chambers are called the atria while the lower chambers are called the ventricles. At the opening of each chamber is a valve to make sure that once blood enters the chamber it flows in the correct direction. Blood enters the heart through the right atrium. It flows into the right ventricle and is pumped into the lungs. Blood full of oxygen from the lungs enters the left atrium. It flows into the left ventricle and is pumped into the body’s arteries to be carried to the body’s cells.

Did the student answer correctly?

a. yes

b. no

What is one technique to a person get proper sleep? eat a heavy meal before bed. exercise intensely before bed. practice relaxation breathing before bed. use electronics before bed.

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

Letter of interest cover letter follow-up letter you letter send it to favorably influence employers’ decision on hiring you arrowright state how you meet the job requirements arrowright send 3-5 days after submitting your application or résumé arrowright express your desire to work for a particular company arrowright reset next