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.
The term biogeochemical is a contraction that refers to the consideration of the biological, geological, and chemical aspects of each cycle.
The mode for this set of data is: 45.
<h3>What is mode?</h3>
Mode can be defined as the number that appear more than other numbers.
The given chart is:
Anxious behaviors per hour
Subject 1 60
Subject 2 45
Subject 3 20
Subject 4 70
Subject 5 45
Based on the above chart we can see 45 in subject 2 and 45 in subject 5 which in turn means that 45 appear more than others numbers as it appear twice.
Therefore The mode for this set of data is: 45.
Learn more about mode here:brainly.com/question/14532771
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Answer:
It is important because it's the difference between giving and recieving.
Explanation:
The definition of refugees is "people fleeing conflict or persecution". The definition of economic migrants is "movement of people from one country to another to benefit from greater economic opportunities in the receiving country". The United States, Canada, and European countries turn refugees away because they are fleeing conflict, could potentially bring that conflict or cause conflict to the new place, and don't give back in a major way once they are granted permission to stay. Whereas, economic migrants are, mostly, not fleeing conflict so the place wouldn't have to fear foreign affairs and consequences, as well as the fact that the migrants will, in some way, give back to them in a way that benefits the place in multiple ways or a major way (such as giving back in the form of exceptional work or labor). This is why they have policies that distinguish between refugees and economic migrants - they want to invite in the people that will benefit them whilst keeping those who won't benefit them out.
Natural environment has the ability to gather some pollutants yet if too much then the environment could no longer handle it. A leaky sewage can pollute an aquifer with I. arsenic as the contaminant. Arsenic is a metalloid existing in the Earth's crush. Exposure is natural yet can be aggravated by the human activities.
