Sure, let's break down the question step by step.

1. **Identify the organism**: Bacillus thuringiensis (often abbreviated as Bt) is a bacterium that is commonly used in pest control.

2. **Understand the types of pest control**:
- **Biological control**: This involves using natural predators, parasites, or pathogens to control pest populations.
- **Chemical control**: This involves using chemical substances, such as pesticides, to kill or repel pests.
- **Mechanical control**: This involves using physical methods or devices to control pests, such as traps or barriers.

3. **Determine the method used by Bacillus thuringiensis**:
- Bacillus thuringiensis produces toxins that are harmful to certain insects when ingested. These toxins specifically target the gut cells of the insects, causing them to stop feeding and eventually die.
- This method uses a natural pathogen (the bacterium) to control pest populations.

4. **Conclusion**: Since Bacillus thuringiensis uses a natural pathogen to control pests, it falls under the category of biological control.

So, the correct answer is:
a. biological control

Question

Sure, let's break down the question step by step.

1. **Identify the organism**: Bacillus thuringiensis (often abbreviated as Bt) is a bacterium that is commonly used in pest control.

2. **Understand the types of pest control**:
   - **Biological control**: This involves using natural predators, parasites, or pathogens to control pest populations.
   - **Chemical control**: This involves using chemical substances, such as pesticides, to kill or repel pests.
   - **Mechanical control**: This involves using physical methods or devices to control pests, such as traps or barriers.

3. **Determine the method used by Bacillus thuringiensis**:
   - Bacillus thuringiensis produces toxins that are harmful to certain insects when ingested. These toxins specifically target the gut cells of the insects, causing them to stop feeding and eventually die.
   - This method uses a natural pathogen (the bacterium) to control pest populations.

4. **Conclusion**: Since Bacillus thuringiensis uses a natural pathogen to control pests, it falls under the category of biological control.

So, the correct answer is:
a. biological control

Knowee AI · Accepted Answer

Sure, let's break down the question step by step.

1. **Identify the organism**: Bacillus thuringiensis (often abbreviated as Bt) is a bacterium that is commonly used in pest control.

2. **Understand the types of pest control**:
   - **Biological control**: This involves using natural predators, parasites, or pathogens to control pest populations.
   - **Chemical control**: This involves using chemical substances, such as pesticides, to kill or repel pests.
   - **Mechanical control**: This involves using physical methods or devices to control pests, such as traps or barriers.

3. **Determine the method used by Bacillus thuringiensis**:
   - Bacillus thuringiensis produces toxins that are harmful to certain insects when ingested. These toxins specifically target the gut cells of the insects, causing them to stop feeding and eventually die.
   - This method uses a natural pathogen (the bacterium) to control pest populations.

4. **Conclusion**: Since Bacillus thuringiensis uses a natural pathogen to control pests, it falls under the category of biological control.

So, the correct answer is:
a. biological control

Bacillus thuringenensis is an example of __________ of pests.Question 3Select one:a.biological controlb.chemical controlc.mechanical control

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