A short living plant in called.

Options

A. Biennial
B. Annual
C. Ephemeral
D. Perennial

Explanation

To determine what a short-lived plant is called, we can analyze the options provided:

1. **Biennial Plants**:
- These plants take two years to complete their life cycle.
- In the first year, they grow leaves and stems, but they do not complete their life cycle in a short time.
- Therefore, biennial plants cannot be classified as short-lived.

2. **Annual Plants**:
- Annual plants complete their entire life cycle from germination to seed production within one growing season.
- They die after one season, which indicates a short life span.
- Hence, annual plants are considered short-lived.

3. **Ephemeral Plants**:
- Ephemeral plants are characterized by their very short life span.
- They can complete one or more generations in a single year and typically grow during favorable conditions, such as when moisture is abundant.
- During unfavorable conditions, they produce seeds to survive until conditions improve.
- This makes them short-lived as they thrive only for a brief period.

Based on this analysis, the correct answer to the question "A short living plant is called" is **Ephemeral**.

### Step-by-Step Solution:
1. **Identify the Types of Plants**: Look at the definitions of biennial, annual, and ephemeral plants.
2. **Analyze Biennial Plants**: Understand that they take two years to complete their life cycle, hence are not short-lived.
3. **Analyze Annual Plants**: Recognize that they complete their life cycle in one growing season, making them short-lived.
4. **Analyze Ephemeral Plants**: Conclude that these plants are characterized by their very short life span and ability to grow in favorable conditions.
5. **Select the Correct Answer**: Determine that the term for short-lived plants is **Ephemeral**.