Biologists believe that ducks evolved from land birds that did not have webbed feet. Biologists believe that ducks evolved from land birds that did not have webbed feet. The amount of webbing on a duck's feet is a heritable trait. This site is using cookies under cookie policy. .metaslider .caption { #footer-widgets .widget { width: 25%; } Are both correct? C. Trait T You have recently colonized a new planet and begin studying heffalumps, a flying species that lives amongst the alien clover. The dodo is the tragic symbol of bird extermination. Ducks are aquatic birds. .entry-content a{ iWhich of the following is true? Most ducks had about the same amount of webbing on their feet as their parents. Vestigial structure, homologous structures. } 100 snails of each type were exposed to the parasite and the number of survivors counted: RR-80, RS-40, SS-20. At the same locus associated with the Mc1r gene in dark colored mice, the DNA sequence reads AGG TGG ACG. while webbed feet were evolving in ancestral ducks quizlet. 7.The first life appeared on earth approximately. C. Yes, some individuals with certain traits are more likely to survive and pass those traits on to their offspring. 36 000 years ago . The single nucleotide difference between the Agouti DNA sequences could be described as apolymorphism. You can specify conditions of storing and accessing cookies in your browser. /* ]]> */ Their feet are webbed and this trait makes them fast swimmers. What percentage of the brown geese are heterozygous? However, they also had lungs that they used to breathe oxygen. A plant with pink flowers is crossed with a plant with white flowers. One common adaptation is webbed feet. C. It was very effective at first, but after a few decades DDT became less effective at killing mosquitoes because many populations had evolved resistance to DDT. If there is NO VARIATION in shell thickness within a population of snails, and no mutations occur, what happens to shell thickness in response to crab predation? A dwarf red snapdragon in crossed with a plant heterozygous at each locus, Which of the following will be true of the offspring? 190. 9/10 Ratings 78118 Happy Students Chapter 7 Test Algebra 1 Answers. /*
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