Fill in the blanks with suitable words in following statements.
(i) Colombia located near the equator has about…….. Species of birds.
(ii) More than 1,25,000 species of………. have been reported in Aamzonian rain forest.
(iii) Favourable and less seasonal enviroments has helped.............organism to gain more niche specialisation.
(iv) Value of slope of regression (Z) of species-area relationship lies in the range of............molluscs in New York state.

Answer

### Step-by-Step Solution:

1. **Statement (i)**: "Colombia located near the equator has about ______ species of birds."
- Colombia is known for its rich biodiversity, especially in bird species. The correct number of species is **1400**.
- **Filled Statement**: "Colombia located near the equator has about **1400** species of birds."

2. **Statement (ii)**: "More than 1,25,000 species of ______ have been reported in Amazonian rainforest."
- The Amazon rainforest is home to a vast number of species, particularly invertebrates. The appropriate word to fill in is **invertebrates**.
- **Filled Statement**: "More than 1,25,000 species of **invertebrates** have been reported in Amazonian rainforest."

3. **Statement (iii)**: "Favorable and less seasonal environments have helped ______ organisms to gain more niche specialization."
- In tropical regions, the organisms that benefit from favorable and less seasonal environments are typically **tropical** organisms.
- **Filled Statement**: "Favorable and less seasonal environments have helped **tropical** organisms to gain more niche specialization."

4. **Statement (iv)**: "Value of slope of regression (Z) of species-area relationship lies in the range of ______ molluscs in New York state."
- The value of Z for molluscs in New York is typically between **0.1 to 0.2**.
- **Filled Statement**: "Value of slope of regression (Z) of species-area relationship lies in the range of **0.1 to 0.2** molluscs in New York state."

### Final Filled Statements:
1. Colombia located near the equator has about **1400** species of birds.
2. More than 1,25,000 species of **invertebrates** have been reported in Amazonian rainforest.
3. Favorable and less seasonal environments have helped **tropical** organisms to gain more niche specialization.
4. Value of slope of regression (Z) of species-area relationship lies in the range of **0.1 to 0.2** molluscs in New York state.