Which of the following is an adaptation plants required before they could permanently inhabit terrestrial environments? Question 10 options:cells with chlorophyll a the ability to store food energy in the form of starch. cell wallscells with chlorophyll ba system to transport water and dissolved substances

To determine which adaptation plants required before they could permanently inhabit terrestrial environments, let's analyze each option step by step:

1. Cells with chlorophyll a:

   • Chlorophyll a is essential for photosynthesis, which is a fundamental process for plants to produce energy. However, this adaptation is not specific to terrestrial environments as it is also found in aquatic plants and algae.

2. The ability to store food energy in the form of starch:

   • Starch storage is important for energy reserves, but it is not a unique adaptation for terrestrial life. Aquatic plants also store energy in the form of starch.

3. Cell walls:

   • Cell walls provide structural support and protection, but they are present in both aquatic and terrestrial plants. This adaptation alone does not address the specific challenges of living on land.

4. Cells with chlorophyll b:

   • Chlorophyll b assists in photosynthesis by expanding the range of light wavelengths a plant can use. However, like chlorophyll a, it is not an adaptation specific to terrestrial environments.

5. A system to transport water and dissolved substances:

   • This is a critical adaptation for terrestrial plants. On land, plants cannot rely on the surrounding water to transport nutrients and water throughout their bodies. They developed vascular tissues (xylem and phloem) to transport water, minerals, and food, which is essential for survival in a terrestrial environment.

Conclusion: The correct answer is a system to transport water and dissolved substances. This adaptation allowed plants to efficiently move water and nutrients from the soil to different parts of the plant, enabling them to thrive in terrestrial environments.