Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. Cytokines such as interferons are molecules that signal neighbouring cells and induce an antiviral state in them. These cells are then primed to resist an infection with the invading virus.
Answer:
TRUE
Explanation:
In the cardiovascular system, the blood flows from <u>high pressure to low pressure.</u>
In the ventricular ejection phase, when the muscles of the ventricles contract, the<u> pressure gradient in ventricles rises</u>. This increases in the <u>pressure in the ventricles exceeds the pressure in the pulmonary artery </u>and aorta, thus opening pulmonary and aortic valves and ejecting the blood from the heart.
Approximately 74 percent of adults in the United States are overweight. BMI
is known as body mass index and it is calculated by
BMI= weight/height
BMI = kg/m²
Body mass index helps to determine if a person is overweight or
underweight. Being over weight means having a BMI of 25-29.9 while
having below 18.5 means being underweight.
Recent studies have however shown that approximately 74 percent of adults
have a BMI of greater than 25 which means they are overweight.
Read more on brainly.com/question/10091149
Answer:
Basically, an effective listener must hear and identify the speech sounds directed toward them, understand the message of those sounds, critically evaluate or assess that message, remember what's been said, and respond (either verbally or nonverbally) to information they've received.
Keys to effective listening include all of the following EXCEPT: have preconceptions. Upward communication is usually used to communicate information about all of the following EXCEPT: indoctrination.
Explanation:
Feedback loop
- feedback means telling whether it was good or bad or in this case, works or not.
