Science homework worksheet asking students to label the three major parts of the brain.

Let's solve the task step by step.

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I. Label the 3 major parts of the brain. (3 pts.)

The image shows a side view of the human brain with three labeled sections (1, 2, and 3). Based on standard anatomy:

- 1. The blue part at the back of the brain is the Cerebellum.
→ This part is responsible for coordination, balance, and fine motor control.

- 2. The red structure below the cerebrum and connected to it is the Brainstem (specifically the medulla oblongata or pons, but collectively referred to as the brainstem).
→ It controls vital functions like breathing, heart rate, and sleep.

- 3. The large yellow area at the top is the Cerebrum.
→ This is the largest part of the brain and is responsible for thinking, memory, voluntary movement, and sensory processing.

✔ So, the correct labels are:

1. Cerebellum
2. Brainstem
3. Cerebrum

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II. Multiple Choice. Write only the letter of the best answer. (7 pts.)

#### 1. Which is considered as an agent or factor that provokes reaction?
A. neuron
B. axon
C. stimulus
D. balance

➡️ A stimulus is any change in the environment that causes a response in an organism. For example, light, sound, or touch can be stimuli.

✔ Answer: C. stimulus

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#### 2. Which refers to the reaction of an organism or any part of its body to stimulus?
A. response
B. reject
C. recover
D. reverse

➡️ A response is the action or reaction that occurs after a stimulus is detected.

✔ Answer: A. response

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✔ Final Answers:

I. Labeling:
1. Cerebellum
2. Brainstem
3. Cerebrum

II. Multiple Choice:
1. C
2. A

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