The Back Reef: Home to Soft-Bodied Organisms

Which area of a barrier reef tends to have more soft-bodied organisms present?

A. Back reef
B. Upper fore reef
C. Lower fore reef
D. Reef crest
E. Lagoon

Answer:

A. Back reef

The back reef area of a barrier reef tends to have more soft-bodied organisms present. The back reef refers to the shallow, protected area located behind the main reef structure. It is characterized by calm waters and higher levels of sedimentation.

These conditions favor the growth of soft-bodied organisms such as sponges, sea anemones, and soft corals. The back reef provides a suitable habitat for these organisms, as they are well-adapted to survive in low-water flow environments and can easily attach themselves to the substrate.

Additionally, the back reef area often has higher nutrient levels, which further supports the growth of soft-bodied organisms. Overall, the back reef is an important ecological niche within a barrier reef system, providing a unique habitat for diverse and specialized marine life.