Choose the incorrect match

Options

A. Gregarious pest-Locusta
B. Living fossil-Limulus
C. Vector-Laccifer
D. Economically important insect-Apis

Explanation

To solve the question "Choose the incorrect match," we need to analyze each option given in the question. Let's go through each option step by step:

### Step 1: Analyze the First Option - Gregarious Pest: Locust
- **Definition**: Gregarious pests are those that travel in large groups and can cause significant damage to crops.
- **Example**: Locusts are known to swarm and are a classic example of gregarious pests.
- **Conclusion**: This is a correct match.

### Step 2: Analyze the Second Option - Living Fossil: Limulus
- **Definition**: A living fossil is an organism that has remained relatively unchanged over a long period of time.
- **Example**: Limulus, also known as the horseshoe crab, is often referred to as a living fossil due to its ancient lineage and unchanged morphology.
- **Conclusion**: This is a correct match.

### Step 3: Analyze the Third Option - Vector: Lassifer
- **Definition**: A vector is an organism that transmits disease or can refer to a molecular carrier of DNA in biotechnology.
- **Example**: Common vectors include mosquitoes that transmit diseases like malaria.
- **Analysis of Lassifer**: Lassifer (or Lacifer) does not fit the definition of a vector in either epidemiology or biotechnology. It is primarily known for producing lac, which is economically important, but it does not act as a vector.
- **Conclusion**: This is an incorrect match.

### Step 4: Analyze the Fourth Option - Economically Important Insects: Apis
- **Definition**: Economically important insects are those that provide significant benefits to humans, such as pollination or production of products.
- **Example**: Apis, or honey bees, are crucial for honey production, pollination, and other products like beeswax.
- **Conclusion**: This is a correct match.

### Final Conclusion
After analyzing all the options, the incorrect match is **Vector: Lassifer**. Therefore, the answer to the question is:

**Incorrect Match: Vector - Lassifer**

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