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Tom [10]
3 years ago
12

How does the potential volume of the pleural sacs change during inhalation?

Biology
1 answer:
exis [7]3 years ago
4 0

<span>Pleural sac is a two layered membrane formed when a serous membrane known as pleura folds back onto itself. Thus, the pleura invest the lungs and line the walls of the thoracic cavity. However, the potential volume of the thoracic cavity increases during inhalation.</span>

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Over many generations darker for color becomes more common in a population of squirrels living in a shady area
PIT_PIT [208]

The answer is letter b. adaptation. Adaptation occurs when living organisms adapt to their surroundings or environment over a long period of time. In this case, Dark Furred Squirrels were abundant, since squirrels adapted to the dark shady area they have lived and adapted into a dark furred one, which allowed it to be more common due to adaptation.



7 0
3 years ago
if we use a cscl gradient to test the density of various nucleic acids, both rna and dna-rna hybrids are more density than just
Wewaii [24]

RNA and DNA-RNA hybrids are more dense than simply DNA if the density of different nucleic acids is tested using a CsCl gradient.

The primary technique employed in molecular biology is the extraction of DNA, RNA, and protein. Scientists can separate materials according to size, shape, and density by using density gradient centrifugation. Isopycnic centrifugation, a sort of density gradient centrifugation that Meselson and Stahl developed, employed a cesium chloride solution to separate DNA molecules solely on the basis of density. Because DNA has hydrogen bonds between its strands, which makes it less dense than RNA, RNA has a far larger density than DNA. RNA can be obtained at the test tube's bottom using a CsCl density gradient and high centrifugation, whereas DNA can be recovered in the middle layer.

To learn more about nucleic acids click here brainly.com/question/11309892

#SPJ4

6 0
9 months ago
How many phosphate minerals most affected human activity
goldenfox [79]

Answer:

How much phosphorus does the human body have?

How much phosphorus do I need?

Life Stage Recommended Amount

Children 9 to 13 years old 1,250 mg

Adolescents 14 to 18 years old 1,250 mg

Pregnant and lactating adolescents 1,250 mg

Adults over 19 years of age 700 mg

Explanation:

3 0
2 years ago
Gland that controls the metabolic rate
oksian1 [2.3K]
Thyriod gland is the right answer
3 0
3 years ago
A person cannot see a single cotton thread 100 feet away, but if you wound thousands of threads together into a rope, it would b
Elena-2011 [213]

Answer:

Yes, it is

Explanation:

It is very much analogous. Just as in the analogy explained, DNA isn't visible to the naked eye when it is alone or single, or just one. On the other hand, it is very much easier to see when the DNA are in a cluster, just like in the cotton example.

Succinctly put, the example is analogous to DNA extraction

8 0
2 years ago
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