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Stage 1
Answer 4 questions correctly in a row.
This passage describes copper tolerance in yellow monkey flowers.

"Mimulus guttatus" by Christophermluna / CC BY 3.0
a yellow monkey flower
- Yellow
monkey flowers are plants that often grow near streams. These plants need small amounts of copper, a metal found in soil, to grow. But too much copper can be toxic to plants. Only yellow monkey flowers that have a trait called copper tolerance can grow in soil with high levels of copper.
The table below describes a possible population of yellow monkey flowers at the start of a period of time and at the end of that period. The table shows the copper tolerance trait in the population at each point in time.
Complete the table.
| Data about a population of yellow monkey flowers | ||||
|---|---|---|---|---|
| Point in time | Number with copper tolerance | Number without copper tolerance | Percentage with copper tolerance | Percentage without copper tolerance |
| Start | 290 | 210 | % | % |
| End | 247 | 703 | % | % |
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