Students Studying a Population of Salamanders in a Vernal Pool

question 2

Multiple Choice

Students studying a population of salamanders in a vernal pool mark each salamander caught as it's entering the pool. During the first spring migration to the pool, the students mark 200 salamanders. The following year, they again capture 200 salamanders. Of these, 20 were from the previous year. Students use this information to calculate that they captured ________ of the total population and that the total salamander population in their pool is about ________.

• A) 20%; 200
• B) 10%; 2000
• C) 20%; 2000
• D) 10%; 200

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Definitions:

Hardy Souls

Individuals who are resilient and capable of enduring difficult conditions or situations.

Diving

The activity of plunging into water from a platform or springboard, often performed competitively to demonstrate skillful acrobatics.

Lagoon

A shallow body of water separated from a larger sea by barrier islands or reefs.

Past Participle

A grammatical form of a verb used to form perfect tenses and passive voice, typically ending in -ed, -en, or an irregular form.