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tankabanditka [31]
3 years ago
14

An 8-month-old infant is admitted to the pediatric unit with a respiratory syncytial virus (RSV) infection and bronchiolitis. Du

ring the admission assessment, which of these signs should the healthcare provider recognize as an early sign of respiratory distress?
Biology
1 answer:
max2010maxim [7]3 years ago
7 0

Answer:

Tachycardia

Explanation:

Bonus:

It's an abnormally fast heart rate.

Symptoms to watch out for are dizziness, weakness, and heart beat (the heart may beat more than 160 times per minute).

They are usually caused by a disruption in the heart's electrical system.

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Which important process takes place in the mitochondria of a cell?
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Mitochondria are involved in cellular respiration, where they produce adenosine triphosphate (ATP). ATP is the cells energy carrier or the cells energy store molecule. 
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What skill is a scientist using when she listens to the sounds that an elephant makes?
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They make a maaaaaa sound
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3 years ago
22. A plant geneticist is investigating the inheritance of genes for bitter taste (Su) and explosive rind (e) in watermelon (Cit
mylen [45]

Answer:

See the answer below

Explanation:

Using the formula for calculating Chi square (X^2):

X^2  =  \frac{(O - E)^2}{E} where O = observed frequency and E = expected frequency.

The observed frequencies for the four phenotypes are 88, 62, 62, and 81 respectively.

For the expected frequency, the phenotypes are supposed to assort in 9:3:3:1 according to Mendel ratio.

Hence, expected frequencies are calculated as:

phenotype (1) = 9/16 x 293 = 164.81

phenotype (2) = 3/16 x 293 = 54.94

phenotype (3) = 3/16 x 293 = 54.94

phenotype (4) = 1/16 x 293 = 18.31

The X^2 is calculated thus:

Phenotype            O               E                             X^2

  1                          88            164.81            \frac{(88 - 164.81)^2}{164.81} = 35.80

  2                          62             54.94            \frac{(62 - 54.94)^2}{54.94} = 0.91

  3                           62             54.94              \frac{(62 - 54.94)^2}{54.94} = 0.91

  4                            81              18.31               \frac{(81 - 18.31)^2}{18.31} = 214.64

Total X^2 = 35.80 + 0.91 + 0.91 + 214.64 = 252.26

To the nearest tenth = 252

Degree of freedom = n - 1 = 4- 1 = 3

X^2 tabulated  = 7.815

<em>The calculated </em>X^2<em> exceeds the critical value, hence, the null hypothesis is rejected. The two genes did not assort independently.        </em>

4 0
2 years ago
The students in Mrs. Cosby's class were observing worms. The students wanted to find out if a worm's body weight is related to h
REY [17]
After the worms have finished eating their food, the students must now weigh the worms and record this data. They can then compare these new weights to the starting weights of the worms and see if it demonstrates their hypothesis. Hope this helped :)
7 0
3 years ago
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It is unnecessary for pregnant and lactating women to increase their fluid intakes
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False
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