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How were the Black Codes related to the passage of the Thirteenth Amendment A. After the Thirteenth Amendment banned slavery, Black Codes were created to restrict the rights of African Americans. B. Southern landowners were exempt from obeying the Thirteenth Amendment as a result of Black Codes. C.The Thirteenth Amendment banned slavery, so African Americans in the South were no longer affected by Black Codes. D. Black Codes called for the end of slavery prior to passage of the Thirteenth Amendment.


The correct answers are A) Food exporters can export as much wheat as they want, while in the past they were limited to 50 tons and C) Citizens working in foreign countries must send back a quarter of their income.

The government of a country has introduced a few economic policies for the current financial year. The policies John Maynard Keynes most likely to disagree with would be “Food exporters can export as much wheat as they want, while in the past they were limited to 50 tons and citizens working in foreign countries must send back a quarter of their income.”

John Maynard Keynes (1883-1946) was the famous economist that developed the theories later known as “Keynesianism.” He encouraged government intervention to end with the economic problems of the Great Depression. He thought that during a recession, the private sector stopped investing and saving. He considered the government should intervene at that moment to reactivate the economy.


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What is an intron? a part of DNA that codes for a functional protein a part of DNA that does not code for a functional protein the beginning part of the DNA molecule the end of part of the DNA molecule



Helicases unwind the two parental DNA’s strands and creates the replication fork; single strand binding proteins keep the single strand from joining.

Further information:

• DNA replication: a biological method occurring in all living organisms that is the basis for biological inheritance

Helicase: It is an enzyme that may unwinds the DNA helix ahead of the replication machinery.

Origin of replication: a specific sequence in a genome at which replication is started.

Steps of DNA replication:

• During initiation, proteins fix to the source of replication while helicase unwinds the DNA helix and two replication forks are formed at the source of replication.

• During elongation, a primer sequence is added with complementary RNA nucleotides, which are then substituted by DNA nucleotides.

• During elongation the leading strand is made constantly, while the lagging strand is made in portions called Okazaki fragments.

• During termination, primers are detached and substituted with new DNA nucleotides and the backbone is stuck down by DNA ligase.

Purpose of DNA replication:

The purpose of DNA replication is to produce two duplicate copies of a DNA molecule. This is essential for cell division during development or repair of damaged tissues. DNA replication ensures that each new cell receives its own replica of the DNA.

Answer details:

Subject: Biology

Level: High school


• DNA replication

• Helicase

• Origin of replication

• Steps of DNA replication

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Student identification codes at a high school are 4-digit randomly generated codes beginning with 1 letter and ending with 3 numbers. there are 26,000 possible codes. what is the probability that you will be assigned the code a123?



Option C – BD=76 cm

Step-by-step explanation:

Given : You are designing a diamond-shaped kite. you know that AD = 44.8 cm, DC = 72 cm, and AC = 84.8 cm.

To find : How long BD should it be?

Solution :

First we draw a rough diagram.

The given sides were AD = 44.8 cm, DC = 72 cm and AC = 84.8 cm.

According to properties of kite

Two disjoint pairs of consecutive sides are congruent.

So, AD=AB=44.8 cm

DC=BC=72 cm

The diagonals are perpendicular.

So, AC ⊥ BD

Let O be the point where diagonal intersect let let the partition be x and y.


AC=  x+y=84.8 …….[1]

Perpendicular bisect the diagonal BD into equal parts let it be z.



Applying Pythagorean theorem in ΔAOD

where H=AD=44.8 ,P= AO=x , B=OD=z


(44.8)^2=x^2+z^2  ………[2]

Applying Pythagorean theorem in ΔCOD

where H=DC=72 ,P= OC=y , B=OD=z


(72)^2=y^2+z^2 …………[3]

Subtract [2] and [3]




37.464=x-y ……….[4]

Add equation [1] and [4], to get values of x and y




Substitute x in [1]




Substitute value of x in equation [2], to get z






We know, BD=z+z

BD= 38.06+38.06

BD= 76.12

Nearest to whole number BD=76 cm

Therefore, Option c – BD=76 cm is correct.


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Which ruler of the Ottoman Empire ruled from 1520 to 1526,revised many la codes and continued the expansion of the Ottoman Empire throughout assigned and Europe? A- Selim 1 B- ilbrahim C- Osman 1 D- Sulayman


Roman engineers built bridges and roads, which allows for more quicker travel from one part of the empire to another. They also built forts and walled cities in many places, and filled them with supplies, so that if there was a revolt, the Romans there (if they are outnumbered) are able to take refuge inside until reinforcements arrived. 
These all help their military have a higher chance of surviving, faster transportation, etc, and it made their armies the most strongest in that era

hope this helps


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8. Dr. Ramirez examines John Wu, who is suffering from the flu. Nurse Jones is in the examination room and assists the doctor. Dr. Ramirez dictates his diagnosis into a recording device, which is transcribed into Mr. Wu’s medical record by the transcriptionist, Sam Smith. Later, the office’s medical coder, Anita Bryant, codes the information for the insurance system. Who can authenticate this entry in the medical record? A. Sam Smith or Anita Bryant B. Dr. Ramirez or Nurse Jones C. Dr. Ramirez, Nurse Jones, Sam Smith, Anita Bryant D. Dr. Ramirez


1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  


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You want to make five-letter codes that use the letters A, F, E, R, and M without repeating any letter. What is the probability that a randomly chosen code starts with A? 0.10 0.15 0.20 0.25


The triangle ABC is similar to triangle LMP. The order here is very important. The letters correspond to one another
A corresponds to L (first letters of each sequence) 
B corresponds to M (second letters of each sequence)
C corresponds to P (third letters of each sequence)

In a similar fashion, the segments also correspond to one another. 
AB corresponds to LM (first two letters of each sequence)
AC corresponds to LP (first and last letters of each sequence)
BC corresponds to MP (last two letters of each sequence)


AB corresponds to LM. AB is 4 units long. LM is 2 units long. So AB is twice as long as LM. This ratio (of 2:1) will be applied to every paired corresponding value.

Also, the right angle is at angle M for triangle LMP. The right angle will be at angle B for triangle ABC (since B corresponds to M). The answer will have an x coordinate of 7. So the answer is either choice B or choice C.

If we move 4 units down from point B, we land on (7,-10). That isn’t listed as an answer choice. Let’s try moving 4 units up from point B. We land on (7,-2). This is an answer choice

So the final answer is choice C) (7,-2)


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Sally wonders how much of a role genetics plays in determining her weight. she has heard about a gene, called ob, that codes for a protein that maintains homeostasis by regulating food intake and energy expenditure in response to adipose tissue. what is the name of the protein?


1. The right answer is polymerization.

Polymerization refers to the chemical reaction or process by which small molecules (eg hydrocarbons of two to ten carbon atoms) react with one another to form molecules of higher molecular weights. The initial molecules may be monomers or prepolymers; synthesis leads to polymers.

2. The right answer is hydrolysis.

Hydrolysis is a chemical reaction in which a covalent bond is broken by the action of a molecule of water.

For organic substances such as proteins, hydrolysis is equivalent to the cleavage of the peptide bonds between the different amino acids that constitute them.

Amino acids are cleaved by enzymes. So is the hydrolysis of starch or amylolysis, used in breweries or generally in the food industry to obtain glucose syrup.

3. The right answer is polymer.

The term polymer denotes a molecule of high molecular mass generally organic or semi-organic. A macromolecule consisting of a sequence of a large number of repeating units, one or more monomers, united to each other by covalent bonds.

Thus starch or proteins are polymers, just as silk or wood are made of polymers. Thermoplastics, thermosets and elastomers are also among the polymers. And polymer matrices are widely used in composite materials.

4. The right answer is lipid.

Lipids are the fat of living things. They are hydrophobic or amphiphilic molecules – hydrophilic molecules having a hydrophilic domain – very diversified, including among others fats, waxes, sterols, fat-soluble vitamins, mono-, di- and triglycerides, or even phospholipids.

5. The right answer is carbohydrate.

Carbohydrates are a class of organic compounds containing a carbonyl group (aldehyde or ketone) and at least two hydroxyl groups (-OH). Included in this class are substances derived from monosaccharides by reduction of the carbonyl group, by oxidation of at least one functional group at the end of the carboxylic acid chain or by replacement of one or more hydroxyl groups by an atom of hydrogen, an amino group, a thiol group or any similar atom.

6. The right answer is nucleic acid.

Nucleic acids are macromolecules, that is, relatively large, relatively complex molecules. They enter the family of biomolecules since they are of great importance in the realm of life, “bios” meaning life in Greek.

Nucleic acids are polymers whose base unit, or monomer, is the nucleotide. These nucleotides are linked by phosphodiester bonds.

7. The right answer is protein.

Proteins are fundamental materials of living matter. Most of our food contains it. From the biochemical point of view, these are large molecules made of chains of varying length of amino acids. All proteins, whether of bacterial, plant or animal origin, consist of a group of 20 amino acids.


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Wilde uses the exchange between Gwendolen and cecily toA. Praise the strict social codes of Victorian societyB. Show the superiority of women in Victorian society c. Mock the formal courtship rules of Victorian society d. Explain the importance of romance in Victorian society



Traditional African marriage is an advantage for men and for women.


Most African regions that celebrate marriage are based on one premise: the family. An African marriage is this: the celebration of the concept of the family through the union of two people; the joining of two families and sometimes even two tribes.

As in the rest of the world, marriage in Africa is an event involving the family and the union of two people. There are many traditions relating to marriage in Africa, and none is the same as another. However, there is something in common, the bride always has a special role being always treated with due respect because it means a new possibility to continue the family. In some places, the groom’s family moves in to the bride’s village and sets up their house there.

In many places in Africa, women are taught from childhood to being good wives, even learning secret languages ​​passed by older elders so they can only communicate about the problems of marriage without their husbands noticing what they say. Grooms, in general, are prepared early on to be ideal partners. In some tribes the older ones get together with the bride and give her wise advice for a happy marriage. Many girls go to schools where older mothers teach them how to be good wives.