These zooplankton are a crucial link in ocean food chains, as they feed on microscopic plants and in turn serve as the principal source of food for most larger animals, from sea surface to ocean bottom.
(These zooplankton; are; a crucial link in ocean food chains) (they; feed; L:on microscopic plants) (they; serve; as the principal source of food for most larger animals, from sea surface to ocean bottom)
These zooplankton they they
are feed serve
a crucial link in ocean food chains
L:on microscopic plants
as the principal source of food for most larger animals, from sea surface to ocean bottom