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xxMikexx [17]
3 years ago
13

Explain why stress - strain curve usually has two segments

Biology
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

The first segment is Elastic elongation and another one is plastic deformation.

Explanation:

The first mode is elastic elongation where once the load is removed, the piece will go back to its original position. This is shown on the curve as the linear region at the beginning.

The second mode is the plastic elongation where once the load is removed the piece will not go back to its original position. The onset of plastic region is shown on the curve when the elastic region becomes curved instead of straight.

Svet_ta [14]3 years ago
5 0
My Answer: A stress-strain curve usually has two segments: a straight segment and a curved segment. Low stresses produce the straight segment, which represents the elastic strain of a material. If the elastic strain is reduced to zero, the deformation disappears.

Hope I helped! :D
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Help!!!! Can anyone answer this lab questions below about mitosis!!!!
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Answer:

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In multicellular organisms, both sexual and asexual reproduction is followed by cell division, which ensures the growth and development of the organism. In addition, cell division is necessary to replace dead cells and repair injuries. New cells are constantly being added and old ones are being destroyed. About a hundred thousand more cells are created every second, and of course the same number dies. The new cells start with the division of the source cell. The cells formed in this way are called daughter cells. Stem cells can gradually divide into all the different cells in the body through mitosis.

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4 0
2 years ago
How does a noncompetitive inhibitor decrease the rate of an enzyme reaction?
Wittaler [7]

Answer :B. By changing the shape of the enzyme's active site.

check the attachment

Explanation: This is a type of inhibition , in which a molecule binds to another part of the enzyme instead of the  active site.

On binding, it disrupts the  normal hydrogen bond and hydrophobic   interactions holding the enzyme molecule in its three dimensional shape, therefore distorting the conformation and   ACTIVE SITE of the  enzyme (changed it shape).

Since the active site is the precise location enzyme must bind with substrates for enzymatic reactions,this makes the enzyme not fit  for binding with the substrate, therefore  the efficiency  is reduced. No substrate-enzyme complex, and hence no substrate-product  complex for the release of  products, this brings down the turnover rate and eventually

<u>the rate of reaction of the enzyme</u>

Thus, the enzyme function is totally blocked, even in high concentration of the substrate,

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4 0
2 years ago
Which of the following best explains why ecosystems need a continual influx of new energy?
Viktor [21]
Energy flows through an ecosystem and cannot be recycled. 
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Answer:

A

Explanation:

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Hope I helped!
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