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Tutor profile: Teryl L.

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Teryl L.
High School Science Teacher 5+years
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Questions

Subject: Environmental Science

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Question:

A species such as Hawaiian Mussels move from one water system to another by attaching to the bottom of ships. Upon arriving to the new water system, their adaptations allow them to take over niches from local species and eventually modify the ecosystem. The mussels have become a(n) _________________ species.

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Teryl L.
Answer:

The mussels in the scenario have become an invasive species as they are not local and are causing harm to the ecosystem

Subject: Chemistry

TutorMe
Question:

The neutralization reaction HCl + NaOH --> NaCl +H20 converts hydrochloric acid and sodium hydroxide (both unpleasant chemicals) into the more tame products: sodium chloride and water. Even though it is called a neutralization reaction, it is also a form of which kind of reaction?

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Teryl L.
Answer:

The addition of the volatile chemicals to the very tame chemicals in this example is a double-displacement reaction

Subject: Biology

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Question:

After several years, a geneticist successfully separates a species of flower for white color. This year, however, when the new generation of flowers blooms, one yellow flower is found in the population. Explain the reason for the appearance of a new flower color within the species.

Inactive
Teryl L.
Answer:

The most likely cause for a new flower color to appear in a species population is a genetic mutation.

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