Organisms that can regulate their body temperature and remain constant irrespective of surroundings are called

Options

A. Homeotherms
B. Warm blooded animals
C. Poikilotherms
D. Both (1) & (2)

Answer

To solve the question regarding organisms that can regulate their body temperature and remain constant irrespective of their surroundings, we can follow these steps:

### Step 1: Understand the Terminology
- The question asks about organisms that maintain a constant body temperature regardless of environmental conditions.
- Key terms to focus on are "regulate," "body temperature," and "constant."

**Hint:** Look for definitions of terms related to body temperature regulation.

### Step 2: Identify the Types of Organisms
- Organisms can be classified based on how they regulate their body temperature into two main categories:
1. **Homeotherms**: These organisms maintain a stable internal body temperature regardless of external conditions.
2. **Poikilotherms**: These organisms have body temperatures that fluctuate with the environment.

**Hint:** Think about the characteristics of each type of organism.

### Step 3: Analyze the Options
- The options given are:
1. Homeotherms
2. Warm-blooded animals
3. Poikilotherms
4. Both 1 & 2

- Homeotherms and warm-blooded animals refer to the same group of organisms that can maintain a constant body temperature.

**Hint:** Consider synonyms and how they relate to the definitions you have learned.

### Step 4: Eliminate Incorrect Options
- **Poikilotherms** are not correct for this question because they do not maintain a constant body temperature; instead, their temperature varies with the environment.
- Therefore, options 1 (Homeotherms) and 2 (Warm-blooded animals) are correct.

**Hint:** Recall which organisms fit into each category.

### Step 5: Choose the Correct Answer
- Since both Homeotherms and Warm-blooded animals describe organisms that can regulate their body temperature and remain constant irrespective of surroundings, the correct answer is:
**Both 1 & 2**.

**Final Answer:** Both 1 & 2 (Homeotherms and Warm-blooded animals).