Final answer:
Sharks and jellyfish are the large planktivorous predators that feed only on zooplankton. Sharks are carnivores that feed on live prey, while jellyfish are suspension feeders that feed on plankton.
Step-by-step explanation:
Sharks and jellyfish are large planktivorous predators that feed only on zooplankton. Sharks are carnivores that feed on live prey, while jellyfish are suspension feeders that feed on plankton. Sharks have abrasive skin covered with tooth-like scales called placoid scales, and jellyfish have tentacles with stinging cells called nematocysts to capture their prey.