2ND PERIODIC TEST IN SCIENCE 4

When you are walking uphill in a hilly area like Conel, your legs start to feel tired after a while. Which body system is responsible for this feeling?

• Circulatory system.

• Muscular system

• Respiratory system

• Skeletal system

Muscles help us move by working with the skeletal system. Which of the following actions is a result of your muscles contracting?

• A. Playing sipa with friends

• B. Reading a book

• C. Sleeping at night

• D. Watching TV

The skeletal system supports the body and helps us move. What daily activity relies heavily on the bones and joints of your body?

• Eating breakfast

• Listening to music

• Sleeping

• Walking to school

You're hiking in a mountainous region. Suddenly, you slip and fall, twisting your ankle. The pain is intense, and you're unable to put any weight on your foot. How does the skeletal system works in this situation?

• The skeletal system plays a crucial role in healing this injury by providing a framework for the damaged tissue to repair itself.

• The skeletal system plays a crucial role in healing this injury by providing a framework for the damaged tissue to repair itself and by storing minerals that are necessary for bone healing.

• The skeletal system plays a crucial role in healing this injury by spraining the ligaments and produce red blood cells, white blood cells.

• The skeletal system plays a crucial role in healing this injury by storing minerals that are necessary for bone healing.

One of the roles of the respiratory system is to facilitate gas exchange between the body and the environment. You take a deep breath after sprinting. This is a direct result of how the respiratory system works.

• Regulates body temperature that makes our mood happy or sad.

• Controls digestion so that we can eliminate our body waste properly.

• Filters blood, to maintain good function of the different parts of the body.

• Allows for the exchange of oxygen and carbon dioxide in the lungs, to provide oxygenated blood throughout the body.

Which of the following human body systems contains the heart and the blood vessels and moves blood throughout the body.

• A. Circulatory system

• B. Digestive system

• C. Respiratory system

• D. Skeletal system

Visualize creating a simple flowchart to show the path food takes through the digestive system. Which of the following best represents the correct sequence of steps you should include in your flowchart?

• Food is chewed in the mouth → Moves to the stomach → Travels to the small intestine → Passes into the large intestine → Leaves the body as waste.

• Food is chewed in the mouth → Moves to the large intestine → Travels to the stomach → Passes into the small intestine → Leaves the body as waste.

• Food is chewed in the mouth → Moves to the small intestine → Travels to the stomach → Passes into the large intestine → Leaves the body as waste.

• Food is chewed in the mouth → Moves to the stomach → Travels to the large intestine → Passes into the small intestine → Leaves the body as waste.

A farmer in San Isidro plants mango trees in his farm. He notices that the roots of the mango tree are strong and extend deep into the soil. Why are the roots important for the tree?

• The roots help the tree absorb water and nutrients from the soil.

• The roots help the tree produce fruits.

• The roots make the leaves greener.

• The roots make the tree taller.

In a science experiment, learners in General Santos City compared two plants: one with roots cut off and one with roots intact. After one week, the plant without roots begins to wilt. What is the most likely reason for this?

• The plant could not absorb water and nutrients from the soil.

• The plant could not get enough sunlight.

• The plant lost its ability to produce flowers.

• The plant's leaves stopped growing.

A farmer notices that a certain type of plant thrives in the rice fields in Buayan, where the area is often flooded. Based on this information, how should the farmer classify this plant?

• A. Aerial

• B. Aquatic

• C. Desert

• D. Terrestrial