Examlex
The venom of black widow spiders (Latrodectus mactans) contains an enzyme that hydrolyzes lecithin to the phospholipid lysolecithin.The lysolecithin lyses red blood cells,destroying them.One possible mechanism whereby lysolecithin disrupts the plasma membranes of red blood cells is that it
Sandstone
A sedimentary rock made primarily of sand-sized grains of minerals or fragments of rocks, classified as clastic.
River
A significant stream of water that moves through a natural channel, heading towards the sea, a lake, or joining another stream.
Breccia
A rock composed of broken fragments of minerals or rock cemented together by a fine-grained matrix that can be similar or different in composition to the fragments.
Braided River
A river that consists of a network of small channels separated by small and often temporary islands called braid bars.
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