You generated a plant that is heterozygous for two quantitative trait loci (qtl). in the heterozygous state, each locus has one allele that contributes one dose of trait (pigment) and another allele that does not contribute a dose to the trait; genotype: r1/r1; r2/r2. if you testcross this plant (by r1/r1; r2/r2 all ò0-doseó alleles) what distribution of pigment doses would be observed in the progeny?

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.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

b is the correct answer