Populations Quiz

Populations Quiz

7th grade Science

GW - Populations Quiz - DIRECTIONS: Answer the following questions in complete sentences. WATCH THIS Video FIRST!!!! IT WILL HELP!

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DIRECTIONS: Answer the following questions in complete sentences.

1. A vegetable garden is 12 meters long by 7 meters wide. In one square meter, you count two toads. Estimate the population of toads in the garden.*Remember - The formula for area is W x L*

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2. Think about it: A limiting factor is any factor that controls the growth of a population. A group of ecologists wanted to study limiting factors so they fenced in a habitat (seen right) with a population of rabbits. The area was completely free of predators and there was a pond with plenty of fresh water. They discovered the carrying capacity of the habitat was six (6) rabbits. What do you think was one of the limiting factors for the rabbit population and why?

The graph to the right shows how the size of the squirrel population in a city park changed over time. Use the graph to answer questions 3–5.

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3. Over which time period(s) did the squirrel population decrease?

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4. Over which time period(s) did the population increase?

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5a. In which year did the population reach its lowest point?

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5b. What was the size of the population when it was at its lowest point?