Olympiad Test Level 2: Human Body - 1 - Class 2 MCQ

Playing drum is an activity which can be done with out the sense of sight.

Lungs help us to breathe, heart beats like a drum and it also pumps blood to all parts of the body.

Brain helps in thinking. Heart pumps blood. Tongue helps in tasting, lungs help in breathing.

There is only one hole in the ear which is seen by our eyes.

Brain - Head
Eye - Vision
Ear - Hear
Fingers - Hand

Incorrect Statement: D: Circulatory system helps to think and remember.
Explanation:
The circulatory system, which includes the heart, blood vessels, and blood, is responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body. While it plays a crucial role in maintaining overall health and well-being, it does not directly contribute to thinking and memory. The brain, along with the nervous system, is primarily responsible for cognitive functions such as thinking, memory, and decision-making.
Here is a breakdown of the correct statements and their explanations:
A: Bones and muscles work together.
- Bones provide the structure and support for the body, while muscles allow movement by contracting and relaxing. They work together to enable various bodily movements.
B: Bones are covered with muscles.
- Muscles are attached to bones through tendons and cover them, providing protection and allowing for movement.
C: Body digests food to give energy.
- The digestive system processes food and breaks it down into nutrients that can be absorbed by the body. These nutrients are then used as a source of energy for various bodily functions.
In conclusion, statement D is incorrect because the circulatory system does not directly contribute to thinking and memory.

Correct Posture for Reading:
When reading, it is important to maintain a correct posture to avoid strain and discomfort. The correct posture for reading is:
1. Sit up straight: Sit in a chair with your back straight, ensuring that your head is aligned with your spine.
2. Support your back: Use a chair with proper back support or place a cushion behind your lower back to maintain a natural curve.
3. Keep your feet flat on the floor: Place your feet flat on the ground to provide stability and support.
4. Position the reading material: Adjust the reading material, such as a book or tablet, at eye level to avoid straining your neck and eyes.
5. Relax your shoulders: Keep your shoulders relaxed and avoid hunching them forward.
6. Rest your arms: Allow your arms to rest comfortably on the armrest or on a table, ensuring that your elbows are at a 90-degree angle.
7. Take regular breaks: It is important to take regular breaks from reading to give your eyes and body a rest. Look away from the reading material and focus on distant objects to reduce eye strain.
Remember, maintaining a correct posture while reading not only helps prevent discomfort and strain but also promotes better concentration and focus.

Air, water are the basic necessities of human life.

Correct answer is C.   Incorrect statement is we should lie down while reading.

Brain is present in the skull kidneys and stomach are present in lower abdomen.
Lungs are present inside the chest protected by Ribcage.