Which of the following is not found in algae?

Options

A. Meiosis
B. Embryo
C. Zygote
D. Fertilization

Answer

To determine which of the following is not found in algae, we will analyze each option provided:

1. **Mucous**: Algae can produce mucous. This is often a protective layer that helps in reducing water loss and can also aid in the attachment to surfaces.

2. **Embryo**: In the life cycle of algae, particularly those that follow the haplontic life cycle, the zygote is the only diploid structure. After fertilization, the zygote undergoes meiosis to produce spores, and there is no formation of an embryo. Therefore, algae do not have an embryo stage.

3. **Zygote**: Algae do produce zygotes. The zygote is formed after fertilization and is the only diploid structure in the haplontic life cycle.

4. **Fertilization**: Algae do undergo fertilization, which is the process that leads to the formation of the zygote.

Based on this analysis, the correct answer is **B. Embryo**, as it is not found in algae.

### Step-by-Step Solution:
1. **Identify the options**: Mucous, Embryo, Zygote, Fertilization.
2. **Analyze each option**:
- Mucous: Present in algae.
- Embryo: Not present in algae.
- Zygote: Present in algae.
- Fertilization: Present in algae.
3. **Determine the life cycle of algae**: Most algae follow a haplontic life cycle where the zygote is the only diploid stage.
4. **Conclude**: Since algae do not form an embryo, the answer is B. Embryo.