Biology, an Environmental Approach: Diversity among living things

Biology, an Environmental Approach: Diversity among living things

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Before the middle of the nineteenth century, most of the animal phyla that we have discussed were recognized, but the ... we mentioned at the beginning of this chapter: to arrive at a convenient way to catalogue species, to keep track of them. ... Select ten pupils, including yourself, and construct a dichotomous key, using characteristics that will enable another person to identify each pupil in the group.


Title:Biology, an Environmental Approach: Diversity among living things
Author: Biological Sciences Curriculum Study, Elizabeth Perrott
Publisher: - 1972
ISBN-13:

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