Which answer choice is an example of how ocean and land ecosystems are connected? A) Orca whales eat krill. Krill consumes phytoplankton that capture energy by photosynthesis. B) Squirrels eat acorns that fall off of trees. C) Decomposers break down the remains of deer and return its nutrients to the soil. D) Ocean fish eat algae off of rocks or eat plants that grow in the sea. Fisherman capture ocean fish to sell at market for food.