Question

1. how do placozoans eat?

through photosynthesis
through phagocytosis
with jaws and teeth
by filtering ocean water

Explanation:

Placozoans are simple marine organisms. Photosynthesis is for organisms with chlorophyll (like plants/algae), so placozoans don't use that. They lack jaws/teeth. Filtering ocean water is done by organisms like some sponges or baleen whales, not placozoans. Placozoans eat by phagocytosis, where they engulf food particles.

Answer:

B. through phagocytosis