TOEFL Reading Academic Passage Practice #026 - Internal Clocks and Daily Timing

Read an Academic Passage designed to build passage comprehension, evidence use, and efficient reading decisions.

5 questionsAbout 8 minutesmedium

What you will practice

Reading comprehension
Evidence and inference
Time management

Topic: Biology · Read an Academic Passage

Passage preview

Many organisms show roughly twenty-four-hour cycles in sleep, hormone release, temperature, and activity. These circadian rhythms continue for a time even under constant conditions, demonstrating that they are generated internally rather than being simple…

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