Some strains of Bacillus thuringiensis produce protein that kill certain Insects such as armyworm. Armyworm is

Options

A. dipteran
B. lepidoptera
C. Coleopteran
D. all of these

Answer

To solve the question, we need to identify the correct classification of the armyworm in relation to the options provided. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Question
The question states that some strains of Bacillus thuringiensis produce proteins that kill certain insects, specifically mentioning the armyworm. We need to determine which order the armyworm belongs to from the given options.

### Step 2: Identify Bacillus thuringiensis
Bacillus thuringiensis (Bt) is a bacterium known for its insecticidal properties. It produces a toxin that is harmful to various insects when ingested. This toxin is activated in the alkaline environment of the insect's gut.

### Step 3: Know the Orders of Insects
The options provided are:
- A) Diterran
- B) Lepidoptera
- C) Coleoptera
- D) All of these

We need to recognize the characteristics of each order:
- **Diterran**: This order includes flies and mosquitoes.
- **Lepidoptera**: This order includes moths and butterflies, which also encompasses the armyworm.
- **Coleoptera**: This order includes beetles.

### Step 4: Determine the Correct Order for Armyworm
The armyworm is specifically a member of the order Lepidoptera. Therefore, the correct answer to the question is that the armyworm belongs to Lepidoptera.

### Step 5: Eliminate Incorrect Options
- **Diterran**: Incorrect, as armyworms are not flies or mosquitoes.
- **Coleoptera**: Incorrect, as armyworms are not beetles.
- **All of these**: Incorrect, since only Lepidoptera is correct.

### Conclusion
The correct answer is **B) Lepidoptera**.

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