A cross-section of pine stem has several concentric rings with distinct borders between each ring. The center of the stem is called pith. The many holes allow water to be carried throughout the plant.
Zoom in on plant problems at the Chesterfield Extension Lab Peggy Singlemann visits Mike Likins at the Chesterfield Extension Lab to learn about the services offered by county Cooperative Extension ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Sean Anthony Eddy via Getty Images A microscope’s job is to magnify the minuscule world ...
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