complete the punnett square, then interpret the results. (brown eyes are dominant; blue eyes are recessive)

b

b

brown eyes: out of or %
blue eyes: out of or %

This would be difficult to specify for you because you did not provide the genotype of the other parent. However, there are limitations to the possible combinations, so I will do each to help you out.

1st possibility:

    B      B

B  BB  BB

b  Bb   Bb

Brown eyes: 4 out of 4 or 100%

Blue eyes:    0 out of 4 or 0%.

2nd possibility:

    B      b

B  BB  Bb

b  Bb   bb

Brown eyes: 3 out of 4 or 75%

Blue eyes:    1 out of 4 or 25%.

3rd possibility:

    b      b

B  Bb  Bb

b  bb   bb

Brown eyes: 2 out of 4 or 50%

Blue eyes:    2 out of 4 or 50%.

As long as there is a capital letter in the genotype, the dominant trait will come out. So if the combination is Bb or BB, then BROWN in this case will come out. The only time BLUE eyes will come out is if has two recessives in its genotype or bb.

the dissolution of polymer can be thermodynamically described in 2 steps.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.