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Christina E.
Master's Student in Public Health with Experience in Tutoring and Assisting Professors
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Environmental Science
TutorMe
Question:

What is the key difference between point and non-point sources of runoff?

Christina E.
Answer:

Point sources of runoff, such as pipes, are clearly identified and defined and can be fairly easily monitored. Through the Clean Water Act, point sources of runoff pollution are monitored through NPDES permits. In contrast, non-point sources of pollution runoff are not easily monitored, as they are not clearly identified and defined. The sources of non-point source runoff are more diffuse than those associated with point source pollution. An example would be agricultural runoff. Total Maximum Daily Loads are limits set by states in order to attempt to control non-point source runoff. They indicate the maximum amount of a pollutant that a body of water can handle in order to remain suitable for uses such as fishing and swimming.

Psychology
TutorMe
Question:

Both Broca and Wernicke worked to understand aphasia more fully. What is the difference in what they discovered through their research?

Christina E.
Answer:

Wernicke discovered that damage to part of the brain, now known as Wernicke's area, results in inability to comprehend language. In contrast, Broca discovered that damage to another part, called Broca's area, resulted in speaking problems.

Biology
TutorMe
Question:

What is the key difference between the methods undertaken by fungi and animals to obtain their nutrients, even though both are considered heterotrophs?

Christina E.
Answer:

Fungi absorb their food through secreting enzymes, whereas animals ingest their food. They both

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