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Olin [163]
3 years ago
12

James wants to estimate the absolute age of an animal fossil. However, test results show that the fossil doesn’t contain any ato

ms of carbon-14. What can James conclude about the lack of carbon-14?
Biology
1 answer:
Stolb23 [73]3 years ago
5 0

Answer:

it can be made if air is compresed in fossil fuel if it can put so hope it will helo you baba

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3. What basic concept of biology includes the idea
Dafna1 [17]

Answer:

It would be the cell theory

5 0
3 years ago
he x-ray film shows a fracture where one side of the cortex is intact and flexed and the other side has signs of interruption (f
KatRina [158]

Answer:

This is refers to as Greenstick fracture.

Explanation:

This is the type of fracture common in children less than 10 years, in which there is incomplete fracture of the bone,with ,but  the cortex  remain flexed.It is called green stick because it is analogous to the act of breaking  a branch of a tree, which is not completely broken, from the main branch.

It is usually to due to falls,and common in kids because of their soft bones which is not completely formed and therefore will not break off completely like that of adults when fractured, but only from one side only.

3 0
3 years ago
Which activity would reduce the biodiversity in a forest ecosystem
bearhunter [10]
If animals are only reproducing with each other so they will most likely get the same traits or very similar traits
5 0
3 years ago
Silk is composed of β sheets whose polypeptide chains consist of the repeating sequence of Gly-Ser-Gly-Ala-Gly-Ala. Based on thi
DIA [1.3K]

Answer:

The correct answer is: d.a nonpolar side chain.

Explanation:

  • Protein can be defined as one of the factors which determine the structure as well as the function of a cell.
  • Proteins are composed of polymeric chains of polypeptides, which are made up of amino acid monomers linked to each other by peptide bonds.
  • Amino acids can be broadly categorised into non-polar and polar based on the nature of the side chain.
  • The non-polar amino acids possess hydrocarbon side-chains which are hydrophobic in nature, so they tend to avoid interaction with water molecules and usually remain in the protein interior. They are uncharged and cannot form any hydrogen bonds with water molecules.
  • The polar amino acids possess charged or polar side-chains which are hydrophilic in nature, so they tend to undergo interaction with water molecules and usually remain on the protein surface. They can form hydrogen bonds with molecules of water.
  • Beta sheets can be defined a secondary structure of the protein in which the polypeptide sequence forms horizontal strands which are linked to each other by loops. Each strand interact with each other by the formation of hydrogen bonds between the C=O group of one peptide (amide) bond in one strand with the N-H group of another peptide (amide) bond in another strand.
  • Apart from these bonds, the non-polar side chains of each amino acid in one strand forms hydrophobic or Van der Waals interactions with the non-polar side chains of each amino acid in the other strand. The polar or charged  side chains of the amino acids on each strand form either hydrogen bonds with water molecules or with oppositely charged side chains.
  • In the given question, glycine and alanine are non-polar amino acids but serine is a polar amino acid. The side-chains of the non-polar amino acids will tend to face towards the interior of the beta sheet thereby forming hydrophobic interactions with each other, while the serine will tend to face the exterior of the beta sheet so that it can form hydrogen bonds with water molecules.
  • As the number of non-polar amino acids is far more than polar amino acids so the effect of non-polar amino acids will prevail in the beta-sheet.

5 0
3 years ago
If you were to decide to remove outlying data points from you analysis what are two ways you could indicate this in your report
Andrej [43]

Answer:

If the outlying data points are to be taken out from the report to guarantee the analysis of examination is right is to eliminate only if that isn't right or if there is enough data to check the data points once more.

One shouldn't eliminate outliers if the outcomes are critical and there are numerous outliers in data point. While eliminating the data points, one can trim the data points or change it with closest with mean or median.

4 0
3 years ago
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