A short living plant in called.

Options

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

Explanation

To solve the question "A short living plant is called," we need to analyze the options provided:

1. **Biennial**: This type of plant lives for two years. It typically grows in the first year and flowers and dies in the second year. Therefore, this option does not fit the description of a short-living plant.

2. **Annual**: An annual plant completes its life cycle in one year. It germinates, grows, flowers, produces seeds, and dies all within a single year. This option is closer to the description of a short-living plant, but it is not the shortest living.

3. **Ephemeral**: Ephemeral plants are characterized by their very short life cycles. They can complete multiple generations within a single year and are often only present during favorable conditions (like sufficient moisture). During unfavorable conditions, they may exist only as seeds. This option fits the description of a short-living plant perfectly.

4. **Perennial**: Perennial plants live for more than two years. They can grow and flower over many seasons. This option does not fit the description of a short-living plant.

Based on the analysis of the options, the correct answer to the question "A short living plant is called" is **ephemeral**.

### Steps Summary:
1. Analyze each option provided.
2. Determine the lifespan associated with each type of plant.
3. Identify which plant type is characterized by a very short life cycle.
4. Conclude that the answer is "ephemeral."