300 dpi: (k7664-11.jpg)
640 pixels wide: (k7664-11.jpg)
Image Number K7664-11 |
Plant physiologists Jack Morgan (left) and Dan LeCain measure photosynthesis in prairie grasses to determine how elevated CO2 affects their growth.
Photo by Scott Bauer.
300 dpi: (k7664-11.jpg)
640 pixels wide: (k7664-11.jpg)
Image Number K7664-11 |
Plant physiologists Jack Morgan (left) and Dan LeCain measure photosynthesis in prairie grasses to determine how elevated CO2 affects their growth.
Photo by Scott Bauer.