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inn [45]
3 years ago
9

Only the smallest particles of soil can be displaced by suspension because:

Biology
2 answers:
Naily [24]3 years ago
7 0

Answer:

Suspension is a process in which the finer particles are carried by wind and water and are transported from one place to another.

The soil is comprised of various particles ranging in different sizes. These <u>particles are of comparatively much lower density</u>, that it can be <u>easily lifted by the agents such as wind and water</u> and t<u>ransported to distant places</u>. Strong wind has the ability to carry this particles to a great distance.

VladimirAG [237]3 years ago
3 0

Answer:

Only the smallest particles of soil can be displaced by suspension because they are easily carried by the wind.

Explanation:

Only the smallest particles of soil can be displaced by suspension because they are easily carried by the wind.

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This model shows a human embryo. What can you determine about its development from the model? just look up an human embryo i do
nalin [4]

Answer:

By looking at human embryo we can determine that it has a postanal tail.

Explanation:

Human embryo is a a process of life cycle that takes place after the fertilization. It takes 9 months for a human embryo to be fully developed. If we take a look at a human embryo, we will notice that it has a postanal tail.

Postanal tail is simply an extension of body. It is only during the embryonic stage that the postanal tail can be found. After the birth this feature cannot be found.

8 0
3 years ago
Carbohydrates primant elements?
Ganezh [65]
<span>Indeed, "carbo" means carbon, while "hydrate" means water, a combination of hydrogen and oxygen molecules. All carbohydrates, including sugar, therefore contain the same three elements: carbon, hydrogen and oxygen. ... Glucose, for instance, is a single-unit carb with six carbon atoms ...</span><span>
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7 0
3 years ago
Describe the process of altering the genetic variation of a cell using a genetically modified virus for human gene therapy. In t
Len [333]
In human gene therapy, a genetically modified virus (a.k.a. a viral vector) can alter the genetic variation of a cell, but not all viral vectors do.

The process often begins with the delivery of or creation of a segment of viral double stranded DNA (containing the gene you want to introduce). Then typically an enzyme known as an integrase cuts the ends of the segment of viral DNA and also cuts open the cell's DNA. Then the viral DNA is integrated/ inserted into the cell's DNA. The connecting ends are ligated together and adjusted so that the nucleotide base pairs match up.

This in the future may affect the gene pool for instance if the viral DNA (your gene) was inserted in the middle of another gene or important regulatory sequence of the cell DNA, and this alteration may be passed on into offspring and become present in the gene pool, which could have bad effects.

The effects on the gene pool really depends on what the virus ends up doing. For example, it may fix the function of a damaged gene which is the goal, and allow for a working gene to be in the gene pool, which would be good. The problem with gene therapy is that it's difficult to predict 100% what the virus will do every time it is given to a patient.

But it's very important to consider that it will only affect the gene pool if the virus is able to enter and alter germ cells (reproductive cells). If the virus, enters somatic cells (regular body cells) this will not be passed on to future generations. So viruses can be designed to avoid germ cells and avoid this gene pool issue. Also, some viral vectors use viruses that do not integrate their DNA, the cells just express the viral DNA (create the desired protein from it) and over time the viral DNA is degraded/ lost which wouldn't pose this threat.

This is long, but I hope it helped!
3 0
3 years ago
Using concepts of Mendelian genetics and natural selection explain the increase in the phenotype frequency for black fur from th
jasenka [17]

Answer:

Black fur is more fit to survive in the environment than other colors of fur.

Explanation:

"Fitness", in terms of natural selection, is an organism's likelihood to survive in a given environment. Assuming that the increase in black fur is significant (Not attributable to pure chance), we can safely assume this is because Black Fur provides a competitive advantage in said environment over other colors of fur. There may be black terrain that allows them to blend into the environment and ovoid predators, or maybe it keeps them warmer if it is located in a cold region, thereby reducing the amount of resources they need to spend to stay warm.

4 0
3 years ago
The magnets point North when the Earth's magnetic field has (p2)<br><br>need some help :)​
Natali5045456 [20]
<h2><u>EARTH'S MAGNETIC FIELD</u></h2>

The magnets point North when the Earth's magnetic field has?

<h2><u>ANSWER</u></h2>

I think the best answer for this question is Magnetic Reversal or Geomagnetic Reversal.

In geomagnetism, the term "geomagnetic reversal" also known as 'flip', is the process by which the North pole becomes South pole and the South pole transforms into North pole.

<h2><u>THE MAGNETIC REVERSAL</u></h2>

The reversals happen on rare occasions when iron molecules start moving towards the opposite direction as other iron molecules around them within the Earth's spinning outer core.

7 0
2 years ago
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