State whether the following statements are true or false.
Eye spots of euglenoids are able to sense movement as they lie close to the base of flagella.
A. True
B. False

Answer

To determine whether the statement "Eye spots of euglenoids are able to sense movement as they lie close to the base of flagella" is true or false, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Euglenoids**: Euglenoids are a group of single-celled organisms that possess both plant and animal characteristics. They have a flagellum for movement and an eyespot (also known as a photoreceptive organelle).

2. **Identify the Function of the Eyespot**: The eyespot in euglenoids is responsible for detecting light. It helps the organism sense the direction and intensity of light in its environment.

3. **Location of the Eyespot**: The eyespot is located near the base of the flagellum. This positioning is crucial because it allows the euglenoid to respond to light stimuli effectively.

4. **Movement Towards Light**: The ability of euglenoids to sense light through their eyespot enables them to exhibit phototaxis, which is the movement towards or away from light. When light is detected, the organism can move towards it, which is essential for photosynthesis.

5. **Evaluate the Statement**: The statement claims that the eyespots can sense movement because they are located near the base of the flagella. Since the eyespots do help in sensing light (not movement per se) and are indeed located close to the flagella, the statement can be interpreted as true in the context of light detection leading to movement.

6. **Conclusion**: Based on the understanding that the eyespot aids in detecting light and that this detection influences movement, we conclude that the statement is true.

### Final Answer:
A. True

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