The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the hypothesis. a. progressive b. coevolution c. regressive d. recessive

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the answer is third world countries, take for instance china, they restricted each family with only one child,

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answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.