This question is not complete; here is the complete question:
A one-hectare pond is sampled in early September. The sample yields 1 small catfish as well as 17 benthic invertebrates that represent 10 species.
If the pond is resampled a year later, which of the following would best indicate that the pond had been adversely affected by adjacent development?
A. An uncommon species has become more numerous
B. An increase in low-tolerance species has occurred
C. A decrease in high-tolerance species has occurred
D. Phylogenetic diversity has occurred
E. The biodiversity of the pond has decreased
The answer to this question is E. The biodiversity of the pond has decreased
Explanation:
In ecology, an ecosystem can be affected by adjacent developments including human developments or even other ecosystems and this can lead to positive or negative consequences.
In this context, one example that shows the was an adverse effect is "The biodiversity of the pond has decreased" because the reduction in diversity represents a major thread for an ecosystem as this makes species more vulnerable to disappear. Also, this can be caused by factors such as pollution caused by human development or major predator of the adjacent ecosystem feeding on organisms in the main ecosystem. Besides this, in the first sample, there were multiple species and a reduction in the second sample shows the ecosystem was weakened.
Answer:
Mexico has a territory of 198 million hectares of which fifteen percent is dedicated to agricultural crops and fifty eight percent which is used for livestock production. Much of the country is too arid and/or too mountainous for crops or grazing.
Explanation:
A sniffer is used at the crime scene to look for flammable liquid residues
Buckley had three examples of situations in which one might complain. Buckley’s first example was sitting on a train, where the inside temperature was 85 degrees and the outside temperature was below freezing. Buckley wanted to complain to the conductor, but the man across from him glared at him as he was about to ask the question. This caused Buckley to ask the conductor when they were going to get to Stamford instead of asking him to turn the heat down. Buckley had another situation where he was at a movie with his wife and the picture was blurry. Buckley complained to his wife, but she said that when someone saw it they would fix it. Buckley accepted his wife’s opinion and waited for the movie to become clear. Buckley waited and waited and he told his wife again that the movie was blurry and he was going to talk to someone. Buckley’s wife assured him that he shouldn’t go talk to someone and that they would fix it when they saw it.
Answer:
He should do a scientific experiment with volunteers who are students of different courses.
Explanation:
In order for Dr. Wilson's research results to be generalizable across the university, he must provide results that show examples in the most diverse fields that the university covers. This will be simple to establish, if he, when looking for volunteers from his research, instead of concentrating the demand in a single sector of the university, focus on the search for volunteers in all sectors, thus reaching students from the most varied courses, present in institution.
