Explain why we use the letters v and v to represent the alleles for height

Alleles are the alternative form of gene . When we talk about the allele we have one capital letter that is V here  and one is small letter that is v  here . V represent the dominant allele and the v represent the recessive allele. V will show the dominant phenotype in the individual and it should have one copy of the allele , and the v will show recessive phenotype in the particular individual.

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.

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