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egoroff_w [7]
2 years ago
5

How does human activity affect the carbon cycle? Coal and petroleum

Biology
1 answer:
netineya [11]2 years ago
7 0
About half of the carbon emitted by human activity rises into the atmosphere, where it helps contribute to global warming. The other half is absorbed by oceans, watersheds and plants, as part of what’s known as “the carbon sink.
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Which statements about the modification of chromatin structure in eukaryotes are true? Select all that apply. View Available Hin
nataly862011 [7]

Answer:

Acetylation of histone tails is a reversible process.

DNA is not transcribed when chromatin is packaged tightly in a condensed form.

Methylation of histone tails in chromatin can promote condensation of chromatin.

Acetylation of histone tails in chromatin allows access to DNA for transcription.

Eukaryotic chromatin structure is a highly complex assembly which needs to be simplified in order to undergo process of transcription. Eukaryotic chromatin structure is highly condensed in nature and DNA cannot be access for transcription. Actylation of histone tails is a process in which breaks the bond of attraction between adjacent nucleosomes. It results in chromatin being condensed attains a loose form. Transcription of DNA can occur in a loose chromatin. Methylation can promote condensation or decondensation of chromatin structure depending upon the methyl group present in the histone.


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What male reproductive structure releases sperm into the vas deferens?
lisov135 [29]

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<h3>What is carbon cycle?</h3>

The carbon cycle is the ongoing process through which carbon atoms move back and forth between the atmosphere and the Earth. The amount of carbon in this system does not fluctuate because our planet and its atmosphere are a closed environment. The location of the carbon, whether it is on Earth or in the atmosphere, is continually changing.

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For more information regarding carbon cycle, visit:

brainly.com/question/12023466

#SPJ1

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