4 media by topic ∙ page 1 of 1
DALLAS, TEXAS TEACHER WINS TEN GRAND. TEN THOUSAND DOLLARS WORTH OF RA...
A group of people standing next to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Microgravity. NASA public domain image colelction.
Isolation of human mammary epithelial cells (HMEC) from breast cancer susceptible tissue; A: Duct element recovered from breast tissue digest. B: Outgrowth of cells from duct element in upper right corner cultu... More
A close up of a tree trunk with yellow lichen on it. Lichen mold tree.
A close up of a tree trunk with yellow lichen / A tree trunk with yellow lichens growing on it / Public domain photo of a park, nature.
A close up of a tree trunk with leaves. Birch bark tree.
A tree with a knot in it / A tree with a knot in it's bark public domain photo.