Phagocytes are the Leukocytes that respond to nonspecific foreign invaders. While Lymphocytes respond to specific invaders. These are components of the blood that are triggered by the immune system when invaders (e.g. bacteria, virus) enter the body. Without these components in the blood, the body will not be able to protect itself from numerous diseases. These are major defense mechanisms of the body.
By implying that blacks and whites are 'separate but equal'.
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The important contribution to navigation made by Eratosthenes in the third-century bc was a reasonably accurate calculation of the circumference of our planet.
Who is Eratosthenes?
Eratosthenes was born in 276 BC and died in 194 BC. He was a well-known poet, mathematician, a researcher in geography, and theorist of music. He was the first to gauge the size of the planet.
The Earth was first measured by Eratosthenes of Cyrene. The precise measurement of Earth's circumference was greatly aided by Eratosthenes' work in the third-century bc.
As a result, the Eratosthenes in the third century bc accurate calculation of the Earth.
Learn more about Eratosthenes, here:
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Answer: Fourteenth Amendment, amendment (1868) to the Constitution of the United States that granted citizenship and equal civil and legal rights to African Americans and slaves who had been emancipated after the American Civil War, including them under the umbrella phrase “all persons born or naturalized in the United States.” In all, the amendment comprises five sections, four of which began in 1866 as separate proposals that stalled in legislative process and were later amalgamated, along with a fifth enforcement section, into a single amendment.
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