Marine Science Final Exam Review

Front

What is the main difference between poriferans and cnidarians?

Back

Poriferans (sponges) lack true tissues and organs, while cnidarians (like jellyfish) have true tissues and exhibit radial symmetry.

Front

What type of symmetry do cnidarians exhibit?

Back

Cnidarians exhibit radial symmetry.

Front

What is a diurnal tide?

Back

A diurnal tide is a tidal pattern where there is one high tide and one low tide each day.

Front

Why do sea turtles leave the water?

Back

Sea turtles usually leave the water to lay eggs.

Front

What is the deepest oceanic trench?

Back

The Mariana Trench is the deepest oceanic trench.

Front

What are spring tides?

Back

Spring tides occur every two weeks during new and full moons, resulting in higher high tides and lower low tides.

Front

What is the significance of true tissues in cnidarians?

Back

True tissues allow cnidarians to have specialized functions and structures, unlike poriferans.

Front

What are the main types of tides?

Back

The main types of tides are diurnal, semidiurnal, and mixed tides.

Front

What adaptations do sea turtles have for their aquatic life?

Back

Sea turtles have streamlined bodies, flippers for swimming, and the ability to hold their breath for long periods.

Front

What role do cnidocytes play in cnidarians?

Back

Cnidocytes are specialized cells in cnidarians that contain stinging structures used for defense and capturing prey.