What's north America before Columbus

1 answer:

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Half a millennium before Columbus “discovered” America, those Viking feet may have been the first European ones to ever have touched North American soil. Exploration was a family business for the expedition's leader, Leif Eriksson (variations of his last name include Erickson, Ericson, Erikson, Ericsson and Eiriksson).Five hundred years before Columbus, a daring band of Vikings led by Leif Eriksson set foot in North America and established a settlement. And long before that, some scholars say, the Americas seem to have been visited by seafaring travelers from China, and possibly by visitors from Africa and even Ice Age Europe.By 1502, the Florentine merchant and explorer Amerigo Vespucci had figured out that Columbus was wrong, and word of a New World had spread throughout Europe. America was later named for Vespucci. And, as researchers now recognize, neither man was actually the first to discover the Americas.^-^

Hoped I Helped Honey Have A Nice Day ¨Peace¨

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How does the author’s discussion of code-breaking contribute to an understanding of Grotjan’s skills?

mario62 [17]

Answer:

In understanding Grotjan's skills, the author's discussion of code-breaking revealed that coded messages are made up of numbers and letters in a pattern. Each of the symbol in the pattern usually represent a letter. Whenever the machine moves, a letter tends to move and a symbol stands out for something different. This makes such code difficult to solve, decipher and decode.

In order to break the codes, cryptanalysts use guess work. They try out a combination of letters.

For example, in cracking Japan's diplomatic coded messages, cryptanalysts used a combination of letters from this Japanese popular saying: "I have the honour to inform Your Excellency".

They tried out a combination of letters through guessing.

Explanation:

Grotjan's discovery in World War II led to the development of a Purple Cipher machine which was built by SIS and the U.S Navy. It was used to read and decode Japan's most diplomatic messages. People saw the breaking of Japan's diplomatic coded messages as a "magic".

"Cracking Code Purple" is an informational text written by Ann Ouchychy. It reveals the impact of Genevieve Grotjan, a female code breaker during World War II.

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3 years ago

In the specific factors model, a country's production possibility frontier is ________ because of _______

VMariaS [17]

Answer:

a curved line; diminishing marginal returns

Explanation:

Specific Factors Model is simply a model answers the question below: How trade affect the earnings of labor, land and capital, We turn our focus to the Home and Foreign countries with slightly different assumptions. Its assumptions includes

A. countries: Home and Foreign

B. 2 goods: Manufactured goods and Agricultural goods

C. 3 factors: Labor, Land and capital. Manufacturing sector uses labor and capital only, while the agricultural sector uses land and labor only. (specific factors). And others.

The model givves new perspectives on the sharing of the profits from trade within a country.

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3 years ago

Worksheet Label It Using the word bank, label the parts of an animal cell. Mitochondrion Golgi bodies nucleus endoplasmic reticu

mrs_skeptik [129]

Hello. You have not added any images for the cell parts to be identified, which makes it impossible for your question to be answered. However, to help you, I will name the parts of the cell shown in the figure that is attached, as this figure also has an animal cell, this way, you will be able to relate to the image you have and answer your question. I hope it helps you.

Answer:

1. Golgi bodies

2. Cell membrane

3. Lysosomes

4. Nucleus

5. Mitochondria

6. Vacuole

7. Endoplasmic reticulum

8. Ribosome

Explantion:

Golgi bodies: they are organelles organized like flat bags, stacking one next to the others. Its main function is the secretion of substances, mainly enzymes and hormones.

Cell membrane: Its function is the protection of the cell's internal content, the delimitation of the cell in relation to the external environment and the selective transport of sub-funds to and from the cell. It is composed of poroteins and lipid molecules.

Lysosomes: They originate in the bodies of Golgie. Its main function is the degradation of harmful or irrelevant particles to the cell, but it can also act in the repair of membrane and secretion.

Nucleus: Its function is to store and protect the genetic and hereditary information of the cell. This is because it is in the nucleus where the DNA and RNA are stored, as well as the chromosomes and genes, which are essential for the maintenance of the organism.

Mitochondria: It is the most important organelle in the cellular respiration process, besides acting in glocolise, in the oxidation of fatty acids and in the formation of ATP, being one of the most important cellular structures.

Vacuolo: It does not exist in the animal cell, being found only in plant cells, but it is responsible for osmotic control, storage and digestion of substances

Endoplasmic reticulum: There are two types of endoplasmic reticulum, rough and smooth. The smooth endoplasmic reticulum has the function of producing lipids that are used in all cell membranes. The rough endoplasmic reticulum has the function of producing lipids, synthesizing proteins and initiating glycoproteins. The rough endoplasmic reticulum is identifiable by the presence of ribosomes.

Ribosomes: Its function is the synthesis of proteins, they can be inserted in the rough endoplasmic reticulum or loose inside the cell.