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pashok25 [27]
2 years ago
11

Scientists have discovered and identified only a fraction of the species living and extinct. True or False?

Biology
2 answers:
Llana [10]2 years ago
6 0

Answer:

True

Explanation:

insens350 [35]2 years ago
5 0

Science

This is true because humans can only know so much due to unexplored lands, water depth, and evidence of extinction being hidden.

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Which molecule is less soluble in water--a fat or a phospholipid? Why?
VladimirAG [237]
Fat is less soluble in water compared to phospholipids.
This is because, fat is made up of three molecules of fatty acids which are not polar in nature at all, thus they mixed very poorly with water.
Phospholipids on the other hand has its molecules divided into two distinct regions, the head and the tail region. The head region is hydrophillic and it is polar in nature, that is, it mixes well with water. The tail region is made up of the fatty components  and it is hydrophobic.
Because of this difference in structure, phospholipid will dissolve better in water.
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3 years ago
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Which section of the pre-mrna contains the protein-coding regions
raketka [301]

The exons of the pre -mRNA contain the protein -coding regions.

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The exons are the regions of the pre-mRNA that are found in the mature RNA, after the splicing of introns takes place.

RNA splicing is the process in which the non-coding segments of the RNA, which are known as introns, are removed by the help of small nuclear ribonucleoproteins.  These SnRNPs make the spliceosome, which catalyzes the process of splicing.

After the introns are removed by the splicing process, the exons are covalently joined, which forms the mature mRNA.

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4 0
1 year ago
In which form do plants store energy?<br> starch<br> glycogen<br> chitin<br> cellulose?
larisa [96]

Answer:

<h2><em><u>starch</u></em></h2>

Explanation:

Plants store carbohydrates in long polysaccharides chains called starch.

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Exposure to the building material asbestos has been linked to certain types of cancers. Asbestos causes mutations in the p53 gen
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Answer:

Explanation:

A

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