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Drupady [299]
3 years ago
11

OMG PLEASE HELP!!!!! TEST SOON!!! Explain how to focus a microscope using the high-power lens. Include any safety issues you nee

d to be aware of.
Biology
1 answer:
BabaBlast [244]3 years ago
5 0
1)magnification goes by 10x (read 10 times), 100x,1000x and some goes 10,000x 

2)Always focus first using lowest power possible first, switch to medium power (100x) after it's focused on low power(10x), on 100x, use the small knob to focus it more. DO NOT touch the bigger nob when in medium or high power. Switch to high power (100x) when it is focused on medium power, again focus again using the small knob on high power. 

3) So it doesn't gather dust and fog up the lense? that one should be self explanatory
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Which macromolecules provide instructions for growth?
VARVARA [1.3K]

Answer:

D

Explanation:

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5 0
3 years ago
The lungs remain inflated because ___________.a. intrapleural pressure is exactly equal to atmospheric pressure b. intrapleural
kkurt [141]

Answer:

Option C,  Intrapleural pressure is less than intrapulmonary pressure

Explanation:

During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  

This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  

Hence, option C is correct

8 0
3 years ago
We are trying to determine the possible modes of inheritance for some particular human disorder. We have a very small pedigree f
ziro4ka [17]

Answer:

Complete question:

We are trying to determine the possible modes of inheritance for some particular human disorder. We have a very small pedigree for this disorder. Assuming the pedigree is accurate, indicate which of the six modes of inheritance are consistent with this pedigree: Select one or more Y Linked Autosomal Recessive Autosomal Dominant X-Linked Dominant X-Linked Recessive We are trying to determine the possible modes of inheritance for some particular human disorder. We have a very small pedigree for this disorder, Assuming the pedigree is accurate, indicate which of the six modes of inheritance ere consistent with this pedigree Select one or more X-Linked Recessive Y Linked Autosomal Recessive X-Linked Dominant Autosomal Dominant.

Answer:

After the analysis of this pedigree, it is clears that the inheritance pattern is X linked because the offsprings are affected with parents genotgype

Explanation:

The inheritance is X linked dominant because of the presence of one dominant gene for the affected genotype in male.

The male individuals are affected. This is therefore not a recessive inheritance in later case, it is only when the two genes are present at the same time the affected genotype will be seen.

4 0
3 years ago
The most violent volcanic activity is associated with
iren2701 [21]
Stratovolcanoes seems to fit, but I do not know what the list of answer choices is. Hope this if helpful :)
7 0
3 years ago
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Diano4ka-milaya [45]
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