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Norma-Jean [14]
3 years ago
7

Which type of coal is found closest to the surface?

Biology
1 answer:
Mama L [17]3 years ago
5 0
<span>Strip mining is used where coal seams are located very near the surface and can be removed in massive layers, or strips. </span>
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Imagine a species with three loci thought to be on the same chromosome. The recombination rate between locus A and locus B is 35
Vesnalui [34]

Answer:

<h2>Recombination rate or recombination frequency between locus A and locus C is either 2% or 50%. </h2>

Explanation:

As given,

Recombination frequency between locus A and B is 35%, means that the distance between A and B is 35 cM.

Recombination frequency between locus B and C is 33% , means the distance between B and C is 33 cM.

Therefore, if the locus C is present between A and B, then the recombination frequency between A and C would be 2%

A-----C ----------B

A---C= 2%

A----B= 35%

B---C= 33%

So, here the recombination frequency between A and C is 2%, means their distance is 2 cM.

If the locus C is as,   A---35---B--33----C ;   A-----B------C

A-----B= 35%

B------C= 33%

A-----C= 33+35= 68%

As rule, maximum frequency can not exceed 50%, as here the Recombination frequency between A and C = 50%.

4 0
3 years ago
Main difference bwteen fats and oils
docker41 [41]

fats are composed of high amounts of saturated fatty acids which are solid at room temperature and oils are composed of mainly unsaturated fatty acids which are a liquid at room temperature

4 0
3 years ago
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A gel electrophoresis is performed, but when the gel imager is used, no bands appear. the researcher might have forgotten to: (c
Sladkaya [172]
The answer is;

a. add electric current.
b. add buffer solution

The process of gel electrophoresis taps on the property of net charges of molecules to ensure that they travel up the gel. Additionally, the buffer acts as the mobile phase for the molecules and also give molecules net charge as they travel through the gel. It is until the molecules reaches an isoelectric point,where the molecule has zero net charge, that they stops moving through the gel. This is how bands are formed.
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3 years ago
Variable
Marizza181 [45]

Answer:

1. control group

2. dependent variable

3. unsure

4. independent variable

5. data

6. tested variable

Explanation:

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3 years ago
What is the source of carbon for the organisms of food chains?
murzikaleks [220]

Answer:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

Explanation:

5 0
2 years ago
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