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the membrane that surrounds the nucleus. It is similar in structure and function to the cell membrane.
substance used to test for the presence of starch. It is a mixture of elemental iodine,...
list of questions or statements that are used to classify or identify a living organism.
two species that interact symbiotically in a relationship that is beneficial to both species....
(also called the carina) in birds is an extension of the sternum (breastbone) which runs along...
the clearing of large areas of natural forest, mainly to free up land for agriculture and or...