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Start the conversation in your choice of over 70 world languages and dialects through courses crafted using conversational methodology. Every self-paced language course introduces the learner to cultural insights and grammatical nuances specific to their language of choice, delivered through native speaker dialogue, and created with each individual learner in mind.
Author
Accelerated Reader
IL: UG - BL: 8 - AR Pts: 18
Language
English
Appears on list
Description
Documents the story of how scientists took cells from an unsuspecting descendant of freed slaves and created a human cell line that has been kept alive indefinitely, enabling discoveries in such areas as cancer research, in vitro fertilization, and gene mapping.
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