Free Images - SnappyGoat.com- bestof:嘉中科学館.jpg ja 嘉中の科学館 zh-tw 嘉中科學館 2016-01-24 15 22 06 own Shouji Hasegawa other versions cc-zero National Chiayi Senior High

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Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.

Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway. Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.

$Wet rough asphalt black bitumen road pavement surface abstract grunge texture close-up top view background banner.\nBitumen is a sticky, black, highly viscous liquid or semi-solid form of petroleum. In the U.S., it is commonly referred to as asphalt. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used.\nTarmacadam is a road surfacing material made by combining crushed stone, sand, and tar. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces. The terms \$