A scientist is studying the biodiversity of an ecosystem that has a cool climate. The scientist counts the number and types of organisms in a 5 foot by 5 foot area. She finds that the ecosystem has very low biodiversity. Another scientist studies the same ecosystem. He counts the number and types of organisms in a 1,000 foot by 1,000 foot area and finds that the ecosystem has high biodiversity.
Answer
A
The scientist who found high biodiversity observed fewer niches.
B
The scientist who found high biodiversity observed more plants than animals.
C
The scientist who found low biodiversity studied the ecosystem on cold days.
D
The scientist who found low biodiversity studied too small of an area.
Explanation
Biodiversity includes the variety of organisms in an area. A 5-foot-by-5-foot sample covers only 25 square feet, while a 1,000-foot-by-1,000-foot sample covers 1,000,000 square feet and is more likely to include different habitats and species. So the scientist who found low biodiversity likely studied too small of an area.
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