[B] Biological Clock

LET'S UNLOCK WORDS AND PHRASES 🔐

continent

[ 'kon-tn-uhnt ]

noun

- mainly surrounded by ocean and usually consisting of various countries

Europe is a continent rich in history and diverse cultures, making it a popular destination for travelers from around the world.

migration

[ mahy-'grey-shuhn ]

noun

- the process of animals traveling to a different place, usually when the season changes

Migration patterns have changed significantly over the past century due to factors like economic opportunities and climate change.

rhythm

[ 'rith-uhm ]

noun

- a regular movement or pattern of movements

After moving to a new country, it can take some time to get used to the rhythm of daily life there.

biological clock

phrase

- your body's natural habit of sleeping, eating, growing, etc. at particular times

Your biological clock helps you feel sleepy at night and awake during the day.

biological rhythm

phrase

- refer to the natural cycles of physiological and behavioral changes that occur in living organisms

Maintaining a regular sleep schedule helps keep your biological rhythm in balance.

LET'S READ! 📖

Direction: Read the passage aloud. Then, read it silently.

Body Clock

COMPREHENSION CHECK 🧠 A. Directions: Identify if the statements are TRUE of FALSE. If the statement is FALSE, provide the correct answer.

COMPREHENSION CHECK

When days become shorter, birds leave the northern parts of the world and fly south, where it is cold and they have enough food.
Biological clocks are used by scientists to describe the timing that controls biological rhythms.
Heart attacks are more likely to happen at night due to biological rhythms.
Humans also have biological clocks that control the daily life.
The biological clock in animals probably controls the brain, but in plants and other living things without brains, it must be controlled by something else.

B. Direction: Answer the following questions based on the article.

When do heart attacks and strokes usually happen?
What controls humans' biological clocks that follow a 24-hour rhythm?
What opens when the trumpet-shaped flowers of the morning glory close?
What do people usually experience when traveling from one continent to another crossing many time zones?
What type of illness often occurs between midnight and the morning hours?

C. Direction: Match the words in column A with their synonyms in column B.

A	B
1. tide	a. scheduling
2. timing	b. species
3. migration	c. flow
4. organisms	d. movement
5. measles	e. disease