Marine Invertebrates

Front

What is the feeding strategy used by sponges to obtain food?

Back

Filter-feeding: A method where organisms filter small particles from water.

Front

In which phylum did organs and organ systems first appear?

Back

Platyhelminthes: The phylum that includes flatworms, where the first organs and organ systems evolved.

Front

What type of symmetry do organisms with a body plan that can be divided into similar halves around a central axis exhibit?

Back

Radial symmetry: A body plan where parts are arranged around a central axis.

Front

Which phylum do octopuses belong to?

Back

Mollusca: The phylum that includes soft-bodied animals, many of which have shells.

Front

What term describes an organism that is fixed in one place and does not move?

Back

Sessile: Organisms that are attached to a surface and do not move.

Front

What is the primary characteristic of the phylum Porifera?

Back

Sponges: Simple organisms that lack true tissues and organs.

Front

What type of feeding strategy involves consuming other organisms?

Back

Carnivore: An organism that primarily eats other animals.

Front

What is the term for organisms that drift in water and are unable to swim against currents?

Back

Planktonic: Organisms that float or drift in water.

Front

What is the main characteristic of the phylum Cnidaria?

Back

Presence of cnidocytes: Specialized cells used for capturing prey, found in jellyfish and corals.

Front

What is the significance of bilateral symmetry in animals?

Back

Bilateral symmetry allows for more complex body structures and movement.