LI SOUND - EXAM

Front

What is a sponge?

Back

A sponge is a simple aquatic animal that has no organs, tissues, or nervous system.

Front

What type of symmetry do sponges exhibit?

Back

Sponges exhibit asymmetry, meaning they do not have a symmetrical shape.

Front

What is a spring tide?

Back

A spring tide occurs when the sun, Earth, and moon are nearly in a line, resulting in higher high tides and lower low tides.

Front

What is the function of the madreporite in sea stars?

Back

The madreporite is a structure through which water enters the water vascular system of sea stars, aiding in movement.

Front

What is a tube foot?

Back

A tube foot is a small, flexible, and muscular structure used by sea stars for movement and feeding.

Front

Define radial symmetry.

Back

Radial symmetry is a type of symmetry where body parts are arranged around a central axis, allowing for multiple lines of symmetry.

Front

What is the role of the water vascular system in echinoderms?

Back

The water vascular system is used for locomotion, feeding, and gas exchange in echinoderms like sea stars.

Front

What are the main components of the water vascular system in sea stars?

Back

The main components include the madreporite, ring canal, radial canals, and tube feet.

Front

What is the difference between high tide and low tide?

Back

High tide is the state of the tide when the water level is at its highest, while low tide is when the water level is at its lowest.

Front

What is asymmetry in biological terms?

Back

Asymmetry refers to a lack of symmetry in an organism's body structure.