Read the following statements.
a. A group of similar cells along with intercellular substances performing a specific function form a tissue.
b. All members of kingdom animalia consist of only four basic types of tissues.
c. When two or more organs perform a common function by their physical or chemical interaction, they together form an organ system.
d. The organ stomach in humans has all for types of tissues.
How many above statements are correct?

Options

A. `3`
B. `2`
C. `1`
D. `4`

Answer

To determine how many of the given statements are correct, we will analyze each statement one by one.

**Step 1: Analyze Statement A**
- Statement A: "A group of similar cells along with intercellular substances performing a specific function form a tissue."
- This statement is correct. Tissues are indeed defined as groups of similar cells that work together to perform a specific function, along with the intercellular substances that support them.

**Step 2: Analyze Statement B**
- Statement B: "All members of kingdom animalia consist of only four basic types of tissues."
- This statement is incorrect. While multicellular animals do have four primary types of tissues (epithelial, connective, muscle, and nervous), not all members of the kingdom Animalia are multicellular. Some members, like sponges, may not fit neatly into this classification.

**Step 3: Analyze Statement C**
- Statement C: "When two or more organs perform a common function by their physical or chemical interaction, they together form an organ system."
- This statement is correct. An organ system is indeed formed when two or more organs work together to perform a specific function through their interactions.

**Step 4: Analyze Statement D**
- Statement D: "The organ stomach in humans has all four types of tissues."
- This statement is correct. The stomach is composed of all four types of tissues: epithelial tissue (lining the stomach), connective tissue (supporting the structure), muscle tissue (for movement and churning of food), and nervous tissue (controlling the functions of the stomach).

**Conclusion: Count the Correct Statements**
- From our analysis:
- Statement A: Correct
- Statement B: Incorrect
- Statement C: Correct
- Statement D: Correct

Therefore, the total number of correct statements is **3**.

### Summary of Correct Statements:
- Correct Statements: A, C, D
- Incorrect Statement: B

### Final Answer:
**3 statements are correct.**

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