Match the animals listed in column I to blood listed in column II
`{:(, "Column I" ,, "Column II"), (a , "Man" , p , "Plasma and cells are colourless"), (b , "Earthworm" , q, "Plasma colourless and nucleated RBC"), (c , "Cockroach" , r, "Plasma colouless and enucleated RBC"), (d , "Frog" , s , "Plasma red and nucleated colourless RBC"), (, , t , "Plasma and RBC have haemoglobin."):}`

Options

A. a-r , b-s , c-p , d-q
B. a-s , b-t , c-r , d-q
C. a- p , b-s , c-q , d- r
D. a-t , b-r , c-p , d-s.

Answer

To solve the question of matching animals from Column I to their corresponding blood characteristics in Column II, we will analyze each animal and its blood characteristics step by step.

### Step-by-Step Solution:

1. **Identify the Blood Characteristics of Man:**
- In humans, the plasma is colorless, and the red blood cells (RBCs) are enucleated (they lose their nucleus during maturation).
- Therefore, the correct match for Man is **R**: "Plasma colorless and enucleated RBC".

2. **Identify the Blood Characteristics of Earthworm:**
- Earthworms have a reddish blood color due to the presence of hemoglobin. The RBCs in earthworms are nucleated and colorless.
- Thus, the correct match for Earthworm is **T**: "Plasma and RBC have hemoglobin".

3. **Identify the Blood Characteristics of Cockroach:**
- Cockroaches have an open circulatory system, and their blood lacks hemoglobin, making both the plasma and cells colorless.
- Therefore, the correct match for Cockroach is **P**: "Plasma and cells are colorless".

4. **Identify the Blood Characteristics of Frog:**
- Frogs have colorless plasma, but their RBCs are nucleated and can be red due to the presence of hemoglobin.
- Hence, the correct match for Frog is **Q**: "Plasma colorless and nucleated RBC".

### Final Matches:
- (a) Man → R: Plasma colorless and enucleated RBC
- (b) Earthworm → T: Plasma and RBC have hemoglobin
- (c) Cockroach → P: Plasma and cells are colorless
- (d) Frog → Q: Plasma colorless and nucleated RBC

### Summary of Matches:
- A → R
- B → T
- C → P
- D → Q