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KiRa [710]
3 years ago
5

In multicellular organisms, cells must be able to communicate with each other. Structures that enable most cells to communicate

with each other are known as _______________.
Biology
1 answer:
OlgaM077 [116]3 years ago
5 0
The answer is Receptor Molecules
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15. Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 30 percent solute solu
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Answer:

Smaller

Explanation:

The human blood cell has a smaller percentage of solute concentration than the solution it was placed into. This means that the cell is hypotonic in comparison to the solution, and the solution is hypertonic compared to the cell. When a cell is placed in a hypertonic solution it undergoes crenation, meaning it shrivels up. Water moves from the lower solute concentration to the higher solute concentration. The water inside the cell moves outside to the hypertonic solution. This causes the cell to become smaller.

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3 years ago
A 3-base deletion in the aauaaa sequence in the 3' untranslated region of an mrna that eliminates the aau, thereby preventing rn
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A 3-base deletion in the AAUAAA sequence in the 3' untranslated region of an mRNA that eliminates the AAU, thereby preventing RNA polymerase from polyadenylation the mRNA would have the effect of; decreasing the number copies of the polyeptide that would be translated from this mRNA. A deletion is a mutation in which a part of a chromosome or a sequence of DNA is lost during DNA replication. 
4 0
3 years ago
Number of chromosomes?
DerKrebs [107]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>KAROTYPE:</h2>

This is the picture of karyotype. Karyotype is a collection of a Individuals chromosome. Like pairs are separately represented from the unlike pairs, It is generally used to study the chromosomes and the abnormalities found in the number of chromosomes.

<h2>_____________________________________</h2><h2>CHROMOSOMAL NUMBER 18:</h2>

Every chromosomal pair seems fine, except the chromosomal pair number 18. Because as you ca see that it has 3 chromosomes instead of 2. This impairment in the chromosomal pair is called trisomy as it has 3 chromosomes.

<h2>_____________________________________</h2><h3>TRISOMY 18:</h3>

Trisomy 18 is also called Edwards syndrome. It is a chromosomal condition associated with abnormalities in more than one part of the body. Individuals with trisomy 18 often mature slowly than normal fetus before birth and they have lower weight at the time of birth as compared to the other children.

<h2>_____________________________________</h2><h2>Best Regards!</h2><h2>'Borz'</h2>

4 0
3 years ago
Page 201 11.4. Give an example of a homologous or vestigial trait, and explain how such traits support the theory of common desc
Gnoma [55]
<h2>Homologous</h2>

Explanation:

  • <em>Two or more species share a unique physical feature,</em> for example, an unpredictable bone structure or a body plan, they may all have acquired this component from a typical predecessor.
  • Physical highlights shared because of developmental history (a typical progenitor) are said to be homologous.  
  • <em>The front flippers of whales and the forelegs of four-legged vertebrates like canines and crocodiles are completely gotten from the equivalent tribal tetrapod structure.</em>
4 0
3 years ago
The greenhouse and enhanced greenhouse effects refer to the return of approximately ______ percent and greater than ______ perce
Sunny_sXe [5.5K]

Answer:

The greenhouse and enhanced greenhouse effects refer to the return of approximately <u>80</u> percent and greater than <u>80</u> percent of the heat radiated by Earth.

Explanation:

During natural greenhouse effect :

. Solar radiation reaches the earth

. Re-radiation of heat occurs

. Less re-emitted heat

. More heath escapes into space

Hence the greenhouse effect refers to return of 80% of heat radiated by Earth.

While during Human Enhanced Greenhouse effect :

. Solar radiation reaches earth

. Re-radiation of heat occurs

. More re-emitted heat

. Less heat escapes into space

Hence the enhanced greenhouse effect refers to return of more than 80% of heat radiated by Earth .

5 0
3 years ago
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