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olya-2409 [2.1K]
2 years ago
5

Oxygen must dissolve into fluid lining alveoli prior to diffusing into our pulmonary capillaries but we cannot breathe water. Ex

plain why we are not able to survive by allowing our lungs to fill with water and breathing underwater. In your answer for this question, consider multiple differences in the respiratory fluids (water and air).
Biology
1 answer:
tamaranim1 [39]2 years ago
6 0

Answer:

The strong hydrogen bonds   in water made water stable and difficult to breakdown into constituent  oxygen and hydrogen atoms.  at a temprature less than 100 degree..

Oxygen is a strong electronegative atom than  the two hydrogen atoms it is attached to in  water. It  pulls more electrons to itself than the hydrogen atoms.. This strengthened  hydrogen bonds in water .

Consequently, it will be difficult for the needed oxygen atoms to simply diffuse into the alveoli to reach the blood,Compare to its  molecular form  where its atoms awere held  by relatively week covalent bonds.

Besides the porosity    of the thin  alveolar endothelial   walls of 0.2 micrometer is   too small for the larger water molecules to pass through.

Explanation:

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3 years ago
- Start with the P generation with the following genotypes (AA x aa). Based on classical Mendelian inheritance, how will a cross
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<em>The correct option is Although the F1 generation will all show the dominant trait, the offspring  will all be heterozygous and increase chances of future variation.</em>

Explanation:

The cross for the offsrings that will be produced by F1 generation is shown below:

         a          a

A      Aa       Aa

A      Aa        Aa

As we can see that all the offsprings in the F1 generation will have heterozygous genes but only the dominant trait will be seen in the phenotype of the F1 generation.

A cross between the F1 generation will give the following results:

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a       Aa      aa

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