Question

1. **predict which organisms may depend on arctic sea ice.

Explanation:

Arctic sea - ice provides habitat, hunting grounds, and breeding areas. Polar bears hunt seals on the ice, seals use ice for resting and pupping, and some species of birds rely on ice - edge ecosystems for food. Phytoplankton under the ice are also the base of the food - web.

Answer:

Polar bears, seals, some species of birds, and phytoplankton.