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kirill115 [55]
2 years ago
8

Question 14 of 25

Biology
1 answer:
Archy [21]2 years ago
5 0

The process likely to be occurring in the plant's roots will be nitrogen fixation.

<h3>What is nitrogen fixation?</h3>

It is a process whereby atmospheric nitrogen is converted to usable forms of nitrogen in the soil.

Nitrogen fixation takes place in the root nodules of leguminous plants in association with some symbiotic bacteria.

Thus, the only process that could be happening in the plant's root is nitrogen fixation.

More on nitrogen fixation can be found here: brainly.com/question/19938608

#SPJ1

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Control of glands and the muscles of internal organs is a function of the __ nervous system
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D.

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Humans can take up available space, disrupt systems, or change water supplies in an ecosystem. What conclusion can you make abou
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Human activities affect the flow of energy and matter in an ecosystem and alter the energy balance in ecosystems through the unsustainable nature of what they do.  The energy flow is affected in several ways as a result of pollution, overpopulation, deforestation, burning fossil fuels, etc. Such changes have stimulated soil erosion, climate change, causing water unfit to consume, poor quality of air and so on. When humans cause a change in the energy balance, they impact the ability of the ecosystem to respond and adapt to changes in the environment. It is like getting a cut, but it never heals and grows bigger instead.

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2 years ago
A gene on human chromosome 15 is expressed throughout the body. However, in the brain, only the maternal copy of the gene is exp
lord [1]

Answer:

C) Through genomic imprinting, methylation regulates expression of the paternal copy of the gene in the brain.

Explanation:

The pattern of gene expression wherein either paternal or maternal gene is expressed in specific cells while the other one is prevented from expression is known as genomic imprinting.

In the given example, the maternal copy of the gene on chromosome 15 is expressed in brain cells while its paternal copy is not expressed in these cells. Hence, the pattern of expression of this gene is regulated through genome imprinting. One of the mechanism is methylation of cytidine residues of CpG islands of the DNA that are more frequently present within promoters of the genes.

When the cytidine residues of these sequences are methylated into 5-methylcytidine, the transcription factors do not bind to these promoters preventing the expression of these genes.

Hence, methylation of cytidine residue in CpG islands of the promoters of the gene present on chromosome 15 could have silenced its expression in brain cells.

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PLEASE HURRY WILL MARK BRAINLIST What is an animal-like, unicellular protist called? protozoan euglenoid slime mold decomposer
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Your answer would be protozoan!

Hope this helps!
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