Consider the following statements (i) - (iii), each with one or two blanks
(i) Bones have a hard and non-pliable ground substance rich in `ul(1)` and `ul(2)` which give bone its strength
(ii) Some of the columnar or cuboidal cells get speciallised for secretion and are called `ul(3)` epithelium
(iii) `ul(4)` junctions help to stop substances form leaking across a tissue
Which one of the following options, gives the correct fills ups for the respective blanks from (1) to (4) in the statements ?

Options

A. (3)-glandular, (4)-Tight
B. (1)-calcium salts, (2)-collagen fibres, (3)-compound, (4)-Excretorty
C. (3)-glandular, (4)-Adhering
D. (1)-magnesium salts, (2)-elastic fibres, (3)-compound

Answer

To solve the question, we need to fill in the blanks in the given statements with the correct terms based on our understanding of biology, particularly in the context of structural organization in animals.

### Step-by-Step Solution:

1. **Identify the first statement**:
- The statement is: "Bones have a hard and non-pliable ground substance rich in `ul(1)` and `ul(2)` which give bone its strength."
- **Fill in the blanks**: The ground substance of bone is primarily composed of **calcium salts** and **collagen fibers**.
- Thus, `ul(1)` = **calcium salts** and `ul(2)` = **collagen fibers**.

2. **Identify the second statement**:
- The statement is: "Some of the columnar or cuboidal cells get specialized for secretion and are called `ul(3)` epithelium."
- **Fill in the blank**: The specialized cells that are involved in secretion are known as **glandular epithelium**.
- Thus, `ul(3)` = **glandular**.

3. **Identify the third statement**:
- The statement is: "`ul(4)` junctions help to stop substances from leaking across a tissue."
- **Fill in the blank**: The type of junction that prevents leakage between cells is called **tight junctions**.
- Thus, `ul(4)` = **tight**.

### Final Answers:
- (1) Calcium salts
- (2) Collagen fibers
- (3) Glandular
- (4) Tight

### Summary of the filled statements:
(i) Bones have a hard and non-pliable ground substance rich in **calcium salts** and **collagen fibers** which give bone its strength.
(ii) Some of the columnar or cuboidal cells get specialized for secretion and are called **glandular** epithelium.
(iii) **Tight** junctions help to stop substances from leaking across a tissue.