Read these statements about a taxonomic key. How many are false ?
1. A taxonomic key is based on the contrasting characters generally in a pair called a couplet .
2. It is generally analytical.
3. It is a taxonomic and used for identification of plants only.
4. Only accepted statement in the key is called a lead.

Options

A. Two
B. One
C. Three
D. Four

Answer

To determine how many statements about a taxonomic key are false, let's analyze each statement one by one:

1. **Statement 1**: "A taxonomic key is based on the contrasting characters generally in a pair called a couplet."
- This statement is **true**. A taxonomic key indeed uses contrasting characters to help in the identification of organisms, and these contrasting characters are typically presented in pairs known as couplets.

2. **Statement 2**: "It is generally analytical."
- This statement is also **true**. Taxonomic keys are analytical tools that break down the identification process into a series of steps, allowing users to systematically identify organisms based on their characteristics.

3. **Statement 3**: "It is a taxonomic aid used for the identification of plants only."
- This statement is **false**. Taxonomic keys are not limited to identifying only plants; they can be used for identifying both plants and animals.

4. **Statement 4**: "Only accepted statement in the key is called a lead."
- This statement is **false**. In a taxonomic key, a "lead" refers to the statement that guides the user to the next step in the identification process, which may include both accepted and rejected options.

Now, let's summarize the findings:
- True statements: 1 and 2
- False statements: 3 and 4

Thus, there are **2 false statements**.

### Final Answer:
**There are 2 false statements.**