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dangina [55]
4 years ago
5

List and describe briefly five external factors that must be present or provided to sustain life

Biology
1 answer:
Genrish500 [490]4 years ago
4 0
The five main external factors that must be present or provided t sustain life are:
1. Water 
2. Oxygen
3. Food
4. Atmospheric temperature 
5. Atmospheric pressure
<span>The human body needs water, food and oxygen in order the body functions to work properly.
</span>Not every temperature is temperature at which the human can live. For example: we can not stay alive long period of time at temperature of 60 degrees Celsius. 
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gsjzvapdjssooqqwiwow epw w wysemevehejeowkkwjwkwknsd d

7 0
3 years ago
In corn, the allele A allows the deposition of anthocyanin (blue) pigment in the kernels (seeds), while aa plants have yellow ke
lara31 [8.8K]

Answer:

<h2>A) Yes, 12 mu</h2><h2>B) AaWw</h2><h2>C) 0.25%</h2><h2 />

Explanation:

As given,

Allele A for  blue anthocynin.

aa for yellow kernel;

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W produce smooth kernel,

ww for wrinkled kernel;

Parents as given are:  AaWw and aaww

Progeny are:

blue smooth ( AaWw)= 1447;

blue wrinkle (Aaww)= 169;

yellow smooth (aaWw)= 186;

yellow wirnked (aaww)= 1510

a)

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non- recombinant progeny are = 1447+ 1510= 2957

so recombination frequency (RF)= 346/2957×100= 12.0054%

So a and w are linked genes.

They are 12 mu far away from each other.

b) Blue smooth parent= AaWw.

c) Aaww crossed with  aaWw

progeny are= AaWw, Aaww, aaWw, aaww,

They all are produced in same proportion =0.25% or 1/4.

5 0
3 years ago
What is meant by the term biodiversity
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What does the letter q stand for in the Hardy-Weinberg equation?
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Hope this has helped Brainliest Mean alot :)</span>
5 0
3 years ago
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