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The article and the lecture are both contradicting each other, in terms of the invasion of the zebra mussel. More specifically, the author of the article presented three theories to prove that it is hard to stop the invasion of mussels into North America that in turn causes a serious impact on the fish population living in the freshwater. However, the lecturer casts doubt about the hypothesis presented in the article and provides some evidence to refute them.
According to the article, the first dispute focuses on the history of overtaking the habitat in Europe by mussels whereby these mussels attach to the ship's bottom and carry themselves through the ballast water to the new habitat where they will start growing. This same situation will happen to North America very soon through human transportation. Nonetheless, the professor undermines the theory presented in the article. Furthermore, he declares that the invasion of mussels happened before since people did not have enough knowledge about it. But now, people can stop this invasion by emptying fresh water before the ship enters North America, and mussels cannot survive in the saltwater. Thus, their population cannot grow in the new habitat.
Moreover, another topic highlights that since there are no predators available to prey mussels, it is very likely that their population would dominate soon in the new habitat. Nevertheless, the speaker negates this by asserting that it is fact that initially, the mussels population can dominate in the new area, however, as soon as birds in that area would know about the presence of mussels, they would start eating mussels. Hence, their population will decline again.
Finally, the text explains that mussels feed on plankton easters which is the food source of the fish who live in the same habitat, and thereby, the fish population would gradually decline. On the contrary, the penman rebuts this point and describes that the presence of mussels has a positive effect on the fish population because they produce organic nutrients from the food they eat which accumulate at the bottom surface. In fact, this food seems to have good nutrients for the fish who live at the bottom of the habitat. Therefore, the positive effect outweighs the negative sides of living mussels in the new habitat.
- tpo14 80
- TPO40Some parents offer their school age children money for each high grade mark they get in school Do you think it is a good idea 73
- Which of the following people are in the most need for government financial support older people who cannot work young families with children unemployed people 73
- When you give money to charitable organizations do you prefer to choose how the donation will be used e g donate money on food or service or leave the decision to the organizations 90
- Imagine that you are going to visit a new city which one of the following ways do you think is the best way to know the city in a short time 1 visit historic sites 2 go to shops and markets 3 enjoy the restaurant and spend time in cafe 73
No. of Words: 387 250
Write the essay in 20 minutes.
Attribute Value Ideal
Final score: 25 in 30
Category: Good Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 0 2
No. of Sentences: 17 12
No. of Words: 387 250
No. of Characters: 1976 1200
No. of Different Words: 193 150
Fourth Root of Number of Words: 4.435 4.2
Average Word Length: 5.106 4.6
Word Length SD: 2.77 2.4
No. of Words greater than 5 chars: 147 80
No. of Words greater than 6 chars: 116 60
No. of Words greater than 7 chars: 64 40
No. of Words greater than 8 chars: 42 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 22.765 21.0
Sentence Length SD: 12.086 7.5
Use of Discourse Markers (%): 0.765 0.12
Sentence-Text Coherence: 0.344 0.35
Sentence-Para Coherence: 0.58 0.50
Sentence-Sentence Coherence: 0.138 0.07
Number of Paragraphs: 5 4