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3 years ago

Cohesion describes water's _____.

Biology

2 answers:

Setler79 [48]3 years ago

5 0

Answer:

The correct answer is option B. attraction to itself.

Explanation:

Hello!

Let's solve this!

Cohesion is the phenomenon by which molecules of the same type attract each other.

In the case of water, there is the hydrogen bridge that is the phenomenon by which water molecules attract each other.

After the analysis, we conclude that the correct answer is option B. attraction to itself.

iVinArrow [24]3 years ago

3 0

I think its A attraction to other substances/

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Explain selective permeability

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Selective permeability is when a cell membrane allows some molecules or ions to pass through it, but not others.

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3 years ago

True-breeding flies with singed bristles (s) and normal wings (L) were crossed to true-breeding flies with normal bristles (S) a

mina [271]

Answer:

The correct answer is -

Possible F2 offspring genotypes and phenotypes:

SsLl: normal bristle, normal wing

Ssll: normal bristle, vestigial wing

ssLl: singed bristle, normal wing

ssll: singed bristle, vestigial wing

Explanation:

In this case, the genes 's' and 'L' and genes 'S' and 'l' are linked, they will be passed on to the gamete together.

The cross would be as follows:

F1:

Parents: singed bristles and normal wings x normal bristles and vestigial wings

Genotype: ssLL SSll

Gametes: sL Sl

F1: SsLl ( normal bristles and normal wings )

For F2,

Parents: normal bristles and normal wings x singed bristles and vestigial wings

Genotypes: SsLl ssll

Gametes: SL, Sl, sL, sl

Cross:

SL Sl sL sl

sl SsLl Ssll ssLl ssll

Thus the possible offspring will have -

SsLl: normal bristle, normal wing

Ssll: normal bristle, vestigial wing

ssLl: singed bristle, normal wing

ssll: singed bristle, vestigial wing

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What is the difference between an ion and an atom?

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