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The first organisms that invaded land we...

The first organisms that invaded land were

A

Plants

B

Fishes

C

Insects

D

Bacteria

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**Step-by-Step Solution:** 1. **Understanding the Origin of Life:** Life on Earth began in the water approximately 2,000 million years ago with the emergence of the first cellular forms. 2. **Development of Photosynthesis:** Certain cells developed the ability to perform photosynthesis, which allowed them to release oxygen into the environment. 3. **Invertebrates in Water:** Around 500 million years ago, invertebrates became active in the aquatic environment, marking a significant step in the evolution of life. 4. **Jawless Fish:** Approximately 350 million years ago, jawless fish appeared and became predominant in the water, showcasing further evolution in aquatic life. 5. **Emergence of Seaweeds and Plants:** About 320 million years ago, seaweeds and certain primitive plants began to exist in the water. 6. **Invasion of Land:** Plants were the first organisms to invade land. They prepared the terrestrial environment, making it suitable for other life forms. 7. **Conclusion:** Therefore, the first organisms that invaded land were plants, which set the stage for the later arrival of animals.
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