Semester I 2022 MBio Final

Front

What is the medusa shape in cnidarians?

Back

The medusa is a free-swimming, umbrella-shaped body form of cnidarians, such as jellyfish, characterized by a bell-shaped structure and tentacles hanging down.

Front

What feeding strategy do most sponges utilize?

Back

Most sponges are filter feeders, meaning they obtain food by filtering water through their porous bodies to capture small particles.

Front

Identify a cnidarian organism that has a polyp body form.

Back

Corals are an example of cnidarians that exhibit a polyp body form, which is typically sessile and has a cylindrical shape.

Front

What is the function of the pen in squids?

Back

The pen is a shell remnant in squids that provides structural support and is located along the dorsal side of the body.

Front

What body form do corals exhibit?

Back

Corals exhibit the polyp body form, which is characterized by a cylindrical shape with a mouth surrounded by tentacles.

Front

What is the primary characteristic of cnidarians?

Back

Cnidarians are characterized by the presence of cnidocytes, specialized cells that contain stinging structures called nematocysts used for capturing prey.

Front

What type of organism is a Sea Cucumber?

Back

A Sea Cucumber is an echinoderm, which is a marine animal known for its elongated body and leathery skin.

Front

What is the role of the ink sac in squids?

Back

The ink sac in squids is used for defense; it releases ink to create a cloud that helps the squid escape from predators.

Front

Define filter feeding in aquatic organisms.

Back

Filter feeding is a method of feeding where organisms filter small particles, such as plankton, from the water, often using specialized structures.

Front

What distinguishes the polyp form from the medusa form in cnidarians?

Back

The polyp form is typically sessile and cylindrical, while the medusa form is free-swimming and bell-shaped.