The basis of dendrogram is

Options

A. Phenetics
B. Taximetrics
C. Numerical taxonomy
D. All of these

Answer

To solve the question "The basis of dendrogram is," we will follow these steps:

### Step 1: Understand the term 'Dendrogram'
A dendrogram is a tree diagram that represents the hierarchical relationships among various species or groups. It visually depicts how different species are related based on shared characteristics.

**Hint:** Think of a family tree, where each branch represents a different lineage or relationship.

### Step 2: Define Hierarchical Classification
Hierarchical classification is a method of organizing species into groups based on shared characteristics. For example, if two species share a common trait, they can be classified under a common category or kingdom.

**Hint:** Consider how living organisms are grouped into categories like kingdom, phylum, class, etc.

### Step 3: Analyze the Options
The options provided are:
1. Fanatics
2. Taximetric
3. Numerical taxonomy
4. All of these

We need to determine which of these options are relevant to the basis of a dendrogram.

**Hint:** Look for terms that relate to classification methods and how they can be used to create a dendrogram.

### Step 4: Evaluate Each Option
- **Fanatics**: This refers to the classification based on morphological characters, which is relevant to dendrograms.
- **Taximetric**: This involves measuring and comparing taxonomic units, which is also relevant.
- **Numerical Taxonomy**: This is based on quantifying the similarities and differences between species, which is essential for constructing dendrograms.

**Hint:** Think about how each of these methods contributes to understanding relationships among species.

### Step 5: Conclusion
Since all three options (fanatics, taximetric, and numerical taxonomy) are important for constructing a dendrogram, the correct answer is "All of these."

**Final Answer:** The basis of dendrogram is all of these (fanatics, taximetric, numerical taxonomy).

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