The pendulum's oscillation was mesmerizing to watch.

The room was divided into two partitions.

Physiological changes occur in the body during exercise.

I need to study for the quiz tomorrow.

The radius of the circle is 5 centimeters.

The taste receptor on my tongue helps me distinguish between sweet and sour flavors.

She has a wide repertoire of songs.

She has a respiratory infection.

I unrolled the ancient scroll to reveal its hidden message.

The endocrine gland secretes hormones into the bloodstream.