The organisms which cause diseases in plants and animals are called

Options

A. pathogens
B. vectors
C. insects
D. worms.

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for the term used to describe organisms that cause diseases in both plants and animals.

2. **Identifying the Options**: The options provided are:
- A) Pathogens
- B) Vectors
- C) Insects
- D) Worms

3. **Analyzing Each Option**:
- **Option A: Pathogens** - These are organisms that cause diseases in other living organisms, including plants and animals. This includes bacteria, viruses, fungi, and parasites.
- **Option B: Vectors** - Vectors are not the organisms that cause diseases themselves; rather, they are organisms (like mosquitoes or ticks) that carry and transmit pathogens from one host to another.
- **Option C: Insects** - While some insects can be harmful and may cause diseases, not all insects are pathogens. They can also be beneficial or neutral.
- **Option D: Worms** - Some worms can cause diseases, but this term is too broad and does not encompass all organisms that cause diseases in plants and animals.

4. **Conclusion**: Based on the definitions and roles of the terms provided, the correct answer is **Option A: Pathogens**. Pathogens are specifically known as the organisms that cause diseases in both plants and animals.

**Final Answer**: The organisms which cause diseases in plants and animals are called **Pathogens**.

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