Question

Why might some krill want to remain near the bottom? ○ Some individuals become too weak to swim upwards into surface waters O a, b andc O a and c Since krill are omnivorous some may remain near the bottom for extended periods to feed on benthic organisms O To conserve limited energy reserves

Answer 1

Answer . a b and c.

All the given statements about krill are correct regarding why they want to remain near the bottom.

To conserve energy and also done individuals become too weak to swim to top and lastly they stay near the bottom to feed on benthic organisms.

Krill are an important trophic level connection.( near the bottom of the food chain).

This is so because they feed on phytoplankton and also zooplankton(but less on zooplankton).

And in this process they convert these into a form suitable for larger animals, as the largest part of the diet of these larger animals is made up by the krill.