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mina [271]
3 years ago
15

Both hyperthyroidism and hypothyroidism can cause a goiter, a swelling of the thyroid gland. You notice that a patient has a swo

llen thyroid gland. Before you order any lab tests, you could make two measurements during a physical exam to help determine the cause of the goiter. What measurements could you make and why would they be helpful?
Biology
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

a=iw

Explanation:

You might be interested in
2. Describe the trans-<br>formation of energy<br>that occurs during<br>photosynthesis.<br>​
Viefleur [7K]

Answer:

Explanation:

Photosynthesis is the process plants use to convert energy from the sun into usable energy for their cells. Plants use the light energy of the sun, carbon dioxide, and water to make glucose (a sugar), and oxygen. The energy of the sun is captured and stored in the bonds between atoms in glucose molecules.

8 0
3 years ago
) consider the trait of courage. describe the advantages and limitations of obtaining informant report data for this trait.
mariarad [96]
The advantages and limitations of obtaining informant report data for the courage trait are;
Advantages include; 
Large amount of information
Definitional truth based on the observed acts of courage.
Limitations on the other hand include; 
Very little behavioral data,
Error; much more likely to remember acts of courage than non-courageous acts.

8 0
3 years ago
In phase-contrast microscopy, the differences in refractive indices between organisms and their environments are utilized for be
mina [271]

Answer:

True

Explanation:

In  phase-contrast objective and a phase contrast optical systems is equipped with Light microscope  .

Phase contrast microscope is used to differentiate unstained structures in a cell  that differ in refractive indices and thickness. Thus it is usefull for examining  living unstained organisms.

Light that passed through materials of different refractive index and/or thickness will undergo a change in Phase. The difference in phase or wave front irregularities cause variation in brightness of the structures.

Hoping this might help!!!

7 0
3 years ago
What do coral reefs do as producers? what do they create for the ocean
cricket20 [7]

Answer: Coral reefs are important to the ecosystem because they are the pillars on which marine and coastal ecosystems are built. They keep plants, fish, and animals fed. They clean up our water and protect our coasts.

Explanation: Hope it helps :)

3 0
2 years ago
Two insecticides will be compared for their effectiveness in eliminating aphids on tomato plants. Forty tomato plants of the Big
densk [106]

Answer:

The t-test

Explanation:

<em>The researcher should use a t-test to compare the two means and check if they are significantly different from each other.</em>

In using the t-test, both null (H0) and alternate (H1) hypothesis are made such that:

  • H0: n1 = n2
  • H1: n1≠ n2

Thereafter, the value of t is calculated and compared to its critical value on the table. The formula for calculating the t goes thus:

t = \frac{Y_1 - Y_2}{\sqrt{\frac{S_1}{n_1} + \frac{S_2}{n_2}  } }

where, Y1 = mean of population 1, Y2 = mean of population 2, S1 = variance of population 1, S2 = variance of population 2, n1 = number of individuals in population 1 and s2 = number of individuals in population 2.

<em>At the end of the day, if the calculated t value is more than the critical value of t, the H0 is rejected and it shows that the two means are significantly different. Otherwise, the H0 is accepted and this shows that there is not significant difference between the mean of population 1 and that of 2.</em>

7 0
3 years ago
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