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ArbitrLikvidat [17]
3 years ago
5

Extinction of organisms is a relatively recent phenomenon attributed primarily to man.

Biology
2 answers:
Otrada [13]3 years ago
6 0
The correct answer is false. Extinction of organisms is not solely cause by man. Even way before, extinction is already happening. It can be caused by natural or human causes. Natural causes includes volcanic eruptions, earthquakes, floods, etc.
vovikov84 [41]3 years ago
5 0
The answer is sadly a. true. It's natural for extinction to happen such as events like asteroid strikes, eruptions of volcanoes and natural climate change. With the current crisis, this now involves us, humans, where we are threatening organisms thru human activities like driving habitat loss, global warming, pollution etc.
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I need help, please. Explain the translation to real life of a ice melted by salt
katen-ka-za [31]

Answer:

When the salt is added to the ice, the point of water freezing is lower, and the ice is melting.

Explanation:

The phenomenon of the salt melting the ice is called the depression of icing. The point is when we add the salt to the ice, the salt breaks water bounding molecules. This way salt is going to melt into ions and those ions are melting the ice.

In the real life, salt is also very useful, not only in chemistry. That is why people are putting salt on frozen roads, for example.

5 0
3 years ago
Which of the following statements regarding human genetic disorders is accurate?
Anit [1.1K]
<span>Human genetic disorders can be caused largely by the change of the DNA sequence from its normal sequence. This can also be caused by a monogenic disorder, a mutation in a gene. So the best answer to this question would be letter B since nondisjunction causes chromosomal abnormalities.</span>
7 0
2 years ago
A new DNA strand elongates only in the 5' to 3' direction because _____.
goldenfox [79]

Answer:

d. DNA polymerase begins adding nucleotides at the 5' end of the template

Explanation:

Polymerase DNA always works in one direction, synthesizing the new 5' to 3' oriented chains and adding nucleotides to the 3' end of a new synthesis chain by forming phosphodiester bonds between the phosphate of a nucleotide and the sugar of the anterior nucleotide.  

Because DNA polymerase only acts in a 5' to 3' direction, replication along a chain, the leading chain, occurs continuously. The synthesis of the opposite chain, the delayed chain, occurs discontinuously because the DNA polymerase must wait for the replication fork to open. Over the delayed chain, short segments of DNA called Okazaki fragments (named after Reiji and Tsuneko Okazaki, the scientists who discovered these fragments) are synthesized as polymerase DNA works out of the replication fork. Ligase DNA catalyzes the covalent bonds between Okazaki fragments in the delayed chain to ensure there are no gaps in the phosphodiester skeleton. Finally, the first ones are removed and these gaps are filled by the DNA polymerase.

6 0
3 years ago
Complete the sentence with the appropriate words. Choose your answers from the choices below. While __________ often wrote lyric
zhannawk [14.2K]
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So, the correct answer would be : A. Brooks Wingspaninson

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Hope this helps
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3 years ago
5th grade work. Correct answer will be marked brainliest.
damaskus [11]

Answer:

the answer is through

Explanation:

so C.

6 0
3 years ago
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