If an organism has more rods it will

Options

A. More active at night
B. More active during day
C. More active during dusk
D. Having colour vision.

Answer

To solve the question "If an organism has more rods it will," we need to analyze the role of rods in the eye and how they affect an organism's behavior, particularly in terms of activity during different times of the day.

### Step-by-Step Solution:

1. **Understand the Function of Rods and Cones:**
- The retina contains two types of photoreceptors: rods and cones.
- Rods are responsible for vision in low light conditions (scotopic vision) and are more sensitive to light than cones.
- Cones are responsible for color vision and function best in bright light (photopic vision).

2. **Identify the Characteristics of Rods:**
- Rods are highly sensitive to light but do not detect color.
- They are primarily used for night vision and seeing in dim light.

3. **Evaluate the Options Given:**
- **More active at night:** This option aligns with the function of rods, as they enable better vision in low-light conditions.
- **More active during the day:** This is incorrect because cones are more active during the day.
- **More active during dusk:** While rods can function during dusk, they are not specifically designed for that time; they are primarily for night vision.
- **Having color vision:** This is incorrect because rods do not provide color vision.

4. **Conclusion:**
- Since organisms with more rods are adapted for low-light conditions, the correct answer is that they will be **more active at night**.

### Final Answer:
If an organism has more rods, it will be **more active at night**.

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