moath322
My essays:
- Populations of the yellow cedar, a species of tree that is common in northwestern North America, have been steadily declining for more than a century now, since about 1880. Scientists have advanced several hypotheses to explain this decline.One hypothesis 75
- Do you agree or disagree with the following statement?Educating children is a more difficult task today than it was in the past because they spend so much time on cell phone, online games, and social networking Web site. 70
- A huge marine mammal known as Steller’s sea cow once lived in the waters around Bering Island off the coast of Siberia. It was described in 1741 by Georg W. Steller, a naturalist who was among the first European to see one. In 1768 the animal became ext 73
- Did bees (a type of insect) exist on Earth as early as 200 million years ago? Such a theory is supported by the discovery of very old fossil structures that resemble bee nests. The structures have been found inside 200- million-year-old fossilized trees i 76
- In 1938 an archaeologist in Iraq acquired a set of clay jars that had been excavated two years earlier by villagers constructing a railroad line. The vessel was about 2,200 years old. Each clay jar contained a copper cylinder surrounding an iron rod. The 70
- The zebra mussel, a freshwater shellfish native to Eastern Europe, has long been spreading out from its original habitats and has now reached parts of North America. There are reasons to believe that this invasion cannot be stopped and that it poses a ser 78
- Agnostids were a group of marine animals that became extinct about 450 million years ago. Agnostid fossils can be found in rocks in many areas around the world. From the fossil remains, we know that agnostids were primitive arthropods-relatives of modern- 70
- Do you agree or disagree with the following statement?If people have the opportunity to get a secure job, they should take it right away rather than wait for a job that would be more satisfying.Use specific reasons and examples to support your answer 73
- Do you agree or disagree with the following statement?If people have the opportunity to get a secure job, they should take it right away rather than wait for a job that would be more satisfying.Use specific reasons and examples to support your answer 73
- Genetic modification, a process used to change an organism’s genes and hence its characteristics, is now being used to improve trees. Through genetic modification, it is possible to create trees that produce more fruits, grow faster, or withstand advers 63