Much of the current research on chronobiology focuses on circadian _____ earlier studies tended to treat daily fluctuations in behavior as mere anomalies.
Which choice completes the text so that it conforms to the conventions of Standard English?
Much of the current research on chronobiology focuses on circadian _____ earlier studies tended to treat daily fluctuations in behavior as mere anomalies.
Which choice completes the text so that it conforms to the conventions of Standard English?