Answer:
Precapillary sphincters increase the flow of blood through a tissue when they relax.
<em>a)True</em>
Explanation:
Precapillary sphincters are rings of smooth muscle bands that surround the capillary opening. These structures help regulate blood flow and blood pressure. They respond to the body's needs and receive nerve and hormonal signals to relax or contract in consequence.
Answer: In part (A), Pgas>Patm, as evidenced by the column of mercury being "pushed up" in the manometer on the side of Patm - in this case, you'll need to add (the amount it's "pushed up") to atmospheric pressure (i.e., 764 mm Hg). You state that you tried to subtract 40.0 from 764.0: Look at the graphic again (I hold it's 7 cm - or 70 mm - Hg) and try adding that number to 764 mm Hg instead of 40 mm Hg.
Explanation:
Answer:
okok so
Explanation:
a: explain that its simply for the records and not to judge or conifine him in anyway.
b: yes, she may suspect him to be a acoholic of somekind
Answer:a. This study involved comparison of two populations. What were the populations?
1) Pregnant women who took the drug.
2)Pregnant women who didn't take the drug.
b. Do you suppose the data were obtained in a survey or experiment?
- Survey
C.Provide a descriptive statistic that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
-out of 1,000 women developed tissue abnormalities
63/3980=.0158
15.8%
D. remember that women whose mothers took the drug were twice as likely to develop tissue abnormalities.)
___ out of 1,000 women developed tissue abnormalities
15.8/2
7.9
e. Medical sudies often use a relatively large sample (in this case 3980). Why?
medical studies often use a relatively large sample (in this case, 3980) because disease occurrences can be rare and difficult to observe when only isolated populations are considered.
