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Biology

What brought about the agricultural revolution?

What brought about the agricultural revolution? Contributing Factors to the Agricultural Revolution The increased availability of farmland. A favorable climate. More livestock. Improved crop yield. What was the main result of the agricultural revolution? The increase in agricultural production and technological advancements during the Agricultural Revolution contributed to unprecedented population growth and new agricultural practices, […]

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Which amino acids are encoded by four codons?

Which amino acids are encoded by four codons? For example, six codons specify leucine, serine, and arginine, and four codons specify glycine, valine, proline, threonine, and alanine. Eight amino acids have two codons, whereas there is one codon each for methionine and tryptophan. Which amino acids are encoded by single codons? Because the code is […]

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Are the species of lizard that are more similar?

Are the species of lizard that are more similar? Are the species of lizard that are more similar to one another according to body type also more closely related based on the results obtained in this module? No, DNA sequence analysis shows that lizard species within the same ecomorph group are not more closely related. […]

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What is composed of nucleotides?

What is composed of nucleotides? A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. What type of nucleic acid […]

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How does ice erode the landscape?

How does ice erode the landscape? One way that glaciers change the landscape is by erosion. As they pass over the ground, the ice scrapes up soil and rock. A valley glacier will leave a valley much deeper, as it erodes the underlying surface with plucking and abrasion. This feature of glacial movement leaves large […]

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How do barrier islands protect the coast from waves and storms?

How do barrier islands protect the coast from waves and storms? Barrier islands protect about 10 percent of coastlines worldwide. When hurricanes and storms make landfall, these strands absorb much of their force, reducing wave energy and protecting inland areas. They also provide a sheltered environment that enables estuaries and marshes to form behind them. […]

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What blood type has B and Rh antigens?

What blood type has B and Rh antigens? AB indicates there are both A and B antigens. Rh+ indicates there are Rh antigens. Antibodies (in the blood plasma): What blood type has B antigens and anti-A antibodies? There are 4 main blood groups defined by the ABO system: blood group A – has A antigens […]

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