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3 years ago

7

Which component of Earth's atmosphere is responsible for absorbing ultraviolet radiation? A. OZone B. Nitrogen C. Water vapor D.

Oxygen

2 answers:

valentina_108 [34]3 years ago

8 0

A)Ozone
The ozone layer contains a high concentration of ozone. Ozone absorbs most of the ultraviolet radiation reaching the Earth.

djyliett [7]3 years ago

4 0

A) the ozone layer, it is the one that takes the uv light from the sun

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Which of the following properties of carbon give it particular importance to life

olga55 [171]

I wrote a paragraph summing the importance of Carbon a while back, see if it helps find your answer. :)

Carbon is an element on the periodic table with the symbol C, and the atomic number 6. There are many reasons that carbon is vital to life on earth, not only to humans but to plants as well. First of all, humans are made of eighteen percent carbon. It is not only found in humans, it is also found in every organism currently known, including plants in a technological way. To plants, carbon flows inside of their cells. They need it to create glucose which then works as food. To humans, it's used in many science sets. It is used in a vast array of compounds including gasoline. Gasoline is what keeps motors around the world running, and it's made up of hydrocarbons with at least 5 carbon atoms each. It also aids the greenhouse effect, keeping the earth warm and habitable by human beings.

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3 years ago

An etiologist is investigating a new disease and observes what appear to be bacteria inside tissue cells in clinical samples fro

Arturiano [62]

Answer:

Explained

Explanation:

The first thing that the etiologist can do is try and culture bacteria from the tissue samples in the lab. And then study about the bacterium's properties and characterstics that are leading to causing diseases in the humans.

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3 years ago

Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DN

Troyanec [42]

Answer:

When analyzing data on the nitrogenous base content of the DNA of various species, the claims are supported by the data:

<em>In any one species, the amount of adenine closely approximates that of thymine. </em>
<em>In any one species, the amount of guanine closely approximates that of cytosine. </em>
<em>The amounts of A, T, G, and C in DNA varies from species to species. </em>

<em>(options A, B and D)</em>

Explanation:

Organizing the data has to:

<u>Source of DNA A T G C </u>

Streptococcus 29.8 31.6 20.5 18.0

Yeast 31.3 32.9 18.7 17.1

Herring 27.8 27.5 22.2 22.6

Human 30.9 29.4 19.9 19.8

E. Coli 24.7 23.6 26.0 25.7

DNA is the molecule that contains the genetic information of each species, formed by sequences of nitrogenous bases Adenine, Thymine, Cytosine and Guanine.

Since Adenine and Thymine -as well as Cytosine and Guanina- are complementary, the percentage of them will be very similar in each DNA molecule.

The genetic information -which determines the physical and functional characteristics of each organism- is encoded in the DNA and is different for each species, so the percentages of nitrogenous bases vary from species to species.

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3 years ago

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Vladimir [108]

(Next time please insert a picture of The graph regarding to your question)

Answer: The answer is (A)

Explanation:

QR- Liquid Only

RS- Phase Change Liquid-Gas

ST-Gas Only

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