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Different forms of Daphnia pulex can be either sexually reproducing or obligately parthenogenetic.
These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting
The ultimate foundation of any political order is violence, no more starkly demonstrated than when a ...
Action Potentials: Stimulus Strength
Teens who date in early adoles-cence are more likely to become sexually active
Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ...