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Sphinxa [80]
3 years ago
14

A scientist studying the Milky Way galaxy notices a bright light in the sky. What information would she need to prove that the o

bject is a comet and not a star?
Biology
1 answer:
sergij07 [2.7K]3 years ago
4 0

Answer:

She would need lots of info, but some examples are,

A. Whether or not the subject is moving

B. Whether or not the subject disappears after a set amount of time

C. Whether or not the subject is near or far, and if it changes in size.

Explanation:

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Is natural selection the only means of evolution? Explain.
Sunny_sXe [5.5K]

Answer:

Much change is due to random genetic drift rather than positive selection. Some are harmful and are likely to be eliminated by natural selection – by death of the embryo, for instance. ...

3 0
2 years ago
Some factories have started using large tanks of bacteria to remove carbon dioxide from the atmosphere. As more factories start
Softa [21]

Answer:

The carbon dioxide in the atmosphere will be reduced if more factories started using bacteria to capture carbon dioxide

Explanation:

There will be more that will reach the Earth System than exited as combustion introduced carbon dioxide to the atmosphere, so the total amount of energy in the system will increase.

6 0
3 years ago
In humans, blue eyes are caused by a recessive allele ("b") that dilutes pigment production. BB and Bb individuals have brown ey
saveliy_v [14]

Answer:

Probability that the son will be:

color-blind = 1/2

blue eyed = 1/8

blue eyed and color-blind = 1/16

Explanation:

Mother : BbXcX

Father : BbXY

Colorblindness is X linked recessive trait hence will be caused when the son has XcY genotype.

XcX   X    XY :

     Xc    X

X  XcX  XX

Y   XcY  XY

Half of the sons will have normal vision and other half will be colorblind hence, there is 1/2 probability that the son will be colorblind.

Eye color is autosomal trait and blue color will be produced when the child has bb genotype.

Bb     X    Bb  :

   B    b

B  BB  Bb

b  Bb   bb

1/4 of the children will have blue eyes. Since half of the children are expected to be males, 1/4 * 1/2 = 1/8 sons are expected to have blue eyes.

Probability of a son being blue eyed and color blind will be :

1/8 * 1/2 = 1/16

3 0
3 years ago
Microscopes require that specimens be non-living in order to be observed
blsea [12.9K]

Answer:

:<

Explanation:

:P

7 0
3 years ago
What is the difference between DNA and RNA?
Jlenok [28]

Answer:

DNA contains thymine, and RNA contains uracil.

7 0
3 years ago
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