many kinds of animals eats sea weeds. for example like sea turtles and some fishes.
manatee
Considering frogs cannot live in salt water I would say nothing in the ocean eats frogs.
Small marine animals like shrimp and stuff.
Sperm whales and beluga whales eat squid.
Well, considering it's an invertebrate, it probably eats scum off the ocean floor or small organisms.
no
Newt
Yes; a yak.
A Cat :)
almost every animal in the ocean eats bacteria.
Chlorokplasts and cell walls.
Vixen - female fox.
a mouse
i am sorry but i don't know but i think seedweed
eats plants
manatee
herring