Fill in the blanks for the statement given below.
i. Collection of actual specimens of plant / animal species is essential and the prime source of........a..........
ii.presence of notochord and dorsal hollow neural system are features of ...........b..........
iii. Stuffed and preserved terms are associated with ..........c.....
iv. .....d........... represents the choice made between two opposite options.
V. The number and type of organism present on earth known as .......e.........

Answer

Let's break down the fill-in-the-blank statements step by step:

### Step-by-Step Solution:

1. **Statement i**: "Collection of actual specimens of plant/animal species is essential and the prime source of **a**."
- The answer here is **taxonomic studies**. Taxonomy is the science of classification of organisms, and actual specimens are crucial for studying and understanding the diversity of life.

2. **Statement ii**: "Presence of notochord and dorsal hollow neural system are features of **b**."
- The answer is **Chordata**. The presence of a notochord and a dorsal hollow nerve cord are defining characteristics of the phylum Chordata, which includes all vertebrates.

3. **Statement iii**: "Stuffed and preserved terms are associated with **c**."
- The answer is **museum**. Stuffed and preserved specimens, often referred to as taxidermy, are typically displayed in museums for educational and research purposes.

4. **Statement iv**: "**d** represents the choice made between two opposite options."
- The answer is **dichotomy**. A dichotomy refers to a division or contrast between two things that are represented as being opposed or entirely different.

5. **Statement v**: "The number and type of organism present on earth known as **e**."
- The answer is **biodiversity**. Biodiversity refers to the variety of life on Earth, including the number of species and their distribution.

### Final Answers:
- a: taxonomic studies
- b: Chordata
- c: museum
- d: dichotomy
- e: biodiversity