Question

Which among the following can be seen in the twilight zone of the marine ecosystem?

• A. Red kelps
• B. Sponges
• C. Algae
• D. Corals

Answer 1

Answer: (A), (B), (D)

The correct options are
A Red kelps
B Sponges
D Corals

$\bullet$ Twilight zone/bathyal zone is the dimly lit zone of marine ecosystem. Most of the plants found in this zone are the red and brown kelps. Sponges and corals are also found in this region.
$\bullet$ Green plants with high photosynthetic activity is found in euphotic/sunlit zone, E.g., Algae.