The diversity of birds helps them survive by the differences in their beaks the different shapes and sizes means they all eat different food therefore that is not an issue. Different coloration is not an issue due to the species separating from each other. The diversity keeps the birds alive by signifying differences.
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George Mason contributed to the United States Constitution by becoming the chief supporter of the Bill of Rights.
Mason was a delegate to the<em> US Constitutional Convention</em> of 1787. However, at that time, he refused to sign the Constitution alleging the inexistence of the <em>Bill of Rights</em> and objecting the slave trade for navigation acts. Finally, he succeeded to introduce the draft that will served as the basis of <em>the United States Bill of Rights</em> during the First Congress in 1789.
D. with agricultural advancements
Explanation:
- Great Zimbabwe was a major trading and religious center
- . Most of the population was engaged in the cultivation of livestock, barley, sorghum and vegetables.
- It is estimated that the city had a population of 10,000 at its peak.
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