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Sav [38]
3 years ago
8

Which of the following statements is true:

Biology
1 answer:
Mrac [35]3 years ago
6 0

The correct answer is option A, that is, DNA is photocopied to make RNA.

Transcription refers to the procedure by which DNA is transcribed or copied to make mRNA (messenger RNA) that conducts the information required for the formation of protein. Transcription occurs in two broad stages. First is the formation of pre-messenger RNA, with the application of RNA polymerase enzymes.  

The pre-messenger RNA is then amended to generate the desired molecule of mRNA in a procedure known as RNA splicing.  


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What is the SI base unit for measuring temperature?
Rasek [7]

The SI unit of temperature is the Kelvin. Although the Celsius temperature scale is also used, it is considered a derived SI unit and is generally used to measure everyday temperatures.

7 0
3 years ago
Four examples of the effects of environmental change are given. Match each one with the type of environmental change it demonstr
Vikki [24]

<u>Answer</u>: The answers are matched as follows:

African forests have been hunted to near extinction levels to obtain ivory-------------->human exploitation

The eruption of mount Saint Helens destroyed some populations of conifers------> natural disasters

An infection with a fungus reduced the population of North American Elm trees ----> disease

Increasing global temperatures have altered migration patterns of humpback whales ------>climate change

<u>Explanation</u>:

  • <em>Human</em> <em>exploitation</em> is the unethical or selfish use of resources to satisfy their own personal needs or for any profitable activity which harms the resources in such a way that they get limited. Humans have been hunting elephants to obtain ivory for many purposes such as making jewellery etc. and earning profits from it. Due to such extensive hunting they have driven the elephants to a level of extinction and thus, this is a form of human exploitation.
  • Mount Saint Helens is a volcano and its eruption which harms the population of the trees in the area is a form of natural disaster since volcanic eruption is a <em>natural</em> <em>phenomena</em>.
  • Fungal infection is a <em>disease</em> which is cause by the microorganisms which harms the population of the Elm trees.
  • Increase of global temperature is a type of climate <em>change</em> and thus, this effect of alteration of migration pattern is caused by climate change.
3 0
4 years ago
Which of the following is a true statement?
aliya0001 [1]
Lipids contain more energy than carbohydrates because they contain more carbon to hydrogen bonds.
7 0
3 years ago
Helpppppp pleasseeee ​
katrin [286]

Answer:

i beleve it would be 700 newtons

Explanation:

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A group of snails (of the same species) lives in a garden that also includes beetles and tomato plants. what level(s) of ecologi
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<span>The group of snails would represent the "population" level of ecological organization. A single snail would represent and Individual. The snails and beetles would represent a community, and the garden itself with the various creatures would represent and ecosystem.</span>
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