Final answer:
The false statement about the seagrass Posidonia oceanica is that it has a growth pattern similar to that of the invasive alga Caulerpa taxifolia.
Step-by-step explanation:
The false statement about the seagrass Posidonia oceanica is: C. It has a growth pattern that is similar to that of the invasive alga Caulerpa taxifolia.
Posidonia oceanica is a seagrass that has been likened to an underwater tree due to its long life. It supports a multitude of species that use its vegetation as habitat. However, its abundance has declined in places where Caulerpa taxifolia has invaded. Caulerpa taxifolia is an invasive alga that can outcompete and displace native seagrasses, including Posidonia oceanica. Therefore, the growth pattern of Caulerpa taxifolia is not similar to that of Posidonia oceanica.