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Cotton and Potatoes. A cotton fiber consists almost exclusively of cellulose, whereas a potato tuber contains mainly starch. Cotton is a tough, fibrous, and virtually insoluble in water. The starch present in a potato tuber, on the other hand, is neither tough not fibrous and can be dispersed in hot […]

Reptiles 1. Which is the vertebrate class that is considered the first entirely terrestrial? 2. Compared to amphibians what is an example of evolutionary novelty present in beings of the class Reptilia against the loss of water through the skin? 3. What are instances of a carnivorous and an herbivorous […]

Wild type Arabidopsis is a selfing diploid plant with 2n=10. You notice five different varieties with distinct phenotypes that involve leaves and fruit of abnormal size, shape and color. These mutations do not breed true and have odd segregation patterns. A) Suggest a chromosomal basis for these mutations and explain […]

Assignemnt: Age of Oil As you know, our world is heavily dependent on oil. In Chapter 6 of Contemporary Environmental Issues, you have read that there is concern about the possibility of reaching a peak in oil production, while Chapter 8 of Contemporary Environmental Issues introduces a variety of possible […]