The algae invasion Additional Information

POWER WORDS (adapted from the Yahoo! Kids dictionary, University of California, Berkeley website and National Institutes of Health website)

cell The smallest structural unit of an organism that is capable of independent functioning.

gene A hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism.

genetic mutation A change in the DNA of a gene.

biological evolution The process of physical c...

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