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zalisa [80]
3 years ago
14

1. light is the fastest-known entity in our universe.

Biology
2 answers:
stepan [7]3 years ago
8 0
1.True 2.True 3.N/A 4.N/A 5.B
Len [333]3 years ago
8 0

1. light is the fastest-known entity in our universe. - true

2. There are fewer than one billion stars in the galaxy.  -true

3. hydrogen atoms do NOT repel each other within a star.  - true

4. sky maps show celestial spheres, including constellations - false

5. which of h following happens during the main-sequence stage of a star's life? - B) It changes the color that it emits.




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DNA, the genetic material of living organisms, is damaged by light in the
insens350 [35]

Answer:

The correct option is <em>B) ultraviolet region, especially below a wavelength of 320 nm.</em>

Explanation:

Ultraviolet light carries an enormous amount of energy in it. It is invisible to the human eye. When UV light with enormous energy and wavelength lesser than 320nm, hits the DNA, it causes changes in the structure of the DNA. Mostly, it affects the thymine nitrogenous base regions and forms pyrimidine dimers. The structure of the DNA changes on all the sites where dimers form and hence, they cannot be properly transcribed.

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3 years ago
If the following mRNA strand were produced during transcription, what amino
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Answer:

Histidine, Glycine, Glycine, Tyrosine, Glycine

Explanation:

Answer B

3 0
2 years ago
1-Which microscope is used in studying the details of the inner surface of mitochondria in a muscle cell
elena-s [515]
1- the correct answer is D
2- the correct answer is C
3 0
3 years ago
Why is an organism least common?
Oksi-84 [34.3K]

Answer:

Hey

If I am answering you right, it is because it is either unwell adapted, a natural disaster has devastated a species, or other non-native species has invaded the area and killed off most of the native species.

hope it helped!

spiky bob your answerer

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3 years ago
HELP DUE IN 20 MINS!
svetoff [14.1K]

\huge\boxed{ \boxed{ \underline \mathcal{Answer}}}

The Required genotype of the Man should be BB in order to have only brown eyed offsprings.

Correct option - C. BB

_____________________________

\mathrm{ ☠ \: TeeNForeveR \: ☠}

3 0
3 years ago
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