The number of deaths under ideal conditions is known as

Options

A. Absolute mortality
B. Realized mortality
C. Absolute natality
D. Realized natality

Answer

To solve the question "The number of deaths under ideal conditions is known as", we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a term that describes the number of deaths occurring under ideal conditions. We need to evaluate each option provided.

2. **Evaluate Option 1: Absolute Mortality**:
- Definition: Absolute mortality refers to the total number of deaths in a specific population or group due to a particular cause, without considering the conditions under which these deaths occur.
- Conclusion: This does not specifically refer to deaths under ideal conditions.

3. **Evaluate Option 2: Realized Mortality**:
- Definition: Realized mortality is the actual death rate observed under existing conditions, which may include various environmental and social factors.
- Conclusion: This term also does not refer to deaths under ideal conditions.

4. **Evaluate Option 3: Absolute Natality**:
- Definition: Absolute natality refers to the total number of births in a population under ideal conditions.
- Conclusion: This option is not relevant to the question as it pertains to births, not deaths.

5. **Evaluate Option 4: Realized Natality**:
- Definition: Realized natality refers to the number of births that occur when there are environmental pressures affecting the population.
- Conclusion: This option is also not relevant to the question as it pertains to births, not deaths.

6. **Final Conclusion**:
- After evaluating all the options, it appears that none of the options correctly define the number of deaths under ideal conditions. However, based on the context provided in the video transcript, it seems that the term "absolute mortality" was incorrectly described in the context of ideal conditions. Therefore, the correct term for the number of deaths under ideal conditions is typically referred to as "absolute mortality".

### Final Answer:
The number of deaths under ideal conditions is known as **Absolute Mortality**.