The organisms that invaded land first

Options

A. Fishes
B. Insects
C. Bacteria
D. Plants

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the first organisms that invaded land. This requires knowledge of evolutionary biology and the timeline of life on Earth.

2. **Identifying the Options**: The options provided are:
- A) Fishes
- B) Insects
- C) Bacteria
- D) Plants

3. **Analyzing Each Option**:
- **Fishes**: Fishes are aquatic organisms and are not the first to invade land.
- **Insects**: Insects evolved later and are not the first organisms to inhabit land.
- **Bacteria**: While bacteria were among the first life forms on Earth, they primarily existed in aquatic environments and did not invade land in the same sense as plants.
- **Plants**: Plants are considered the first organisms to successfully invade land. They evolved from green algae and adapted to terrestrial life.

4. **Conclusion**: Based on the analysis, the first organisms that invaded land were plants. Therefore, the correct answer is option D.

**Final Answer**: D) Plants

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