What are reflex actions? Give two examples. Explain a reflex arc

Explanation

### Step-by-Step Text Solution

**Step 1: Define Reflex Actions**
Reflex actions are rapid, automatic responses to stimuli that occur without conscious thought. These actions are involuntary and are controlled by the nervous system, specifically the brain.

**Step 2: Provide Two Examples of Reflex Actions**
1. **Touching a Hot Surface:** When a person accidentally touches a hot plate, the immediate response is to withdraw the hand quickly. This action occurs without the person consciously deciding to move their hand away.
2. **Stepping on a Sharp Object:** If someone steps on something sharp, the reflex action is to quickly lift the foot away from the sharp object to avoid injury.
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