2025 Aquatic Science Spring Final Exam Review

Front

Aquatic organisms get oxygen from the water by:

Back

Using gills to extract dissolved oxygen.

Front

What is countershading in fish and aquatic organisms?

Back

A type of coloration where the dorsal side is darker and the ventral side is lighter to provide camouflage.

Front

Non point source pollution is:

Back

Pollution that comes from multiple, diffuse sources.

Front

What aquatic organism uses slime as a defense mechanism?

Back

Hagfish.

Front

An aquifer is:

Back

A layer of rock that holds water.

Front

What is the primary function of gills in aquatic organisms?

Back

To extract dissolved oxygen from water.

Front

Define the term 'biodiversity' in aquatic ecosystems.

Back

The variety of life in a particular habitat or ecosystem, including the number of different species.

Front

What role do wetlands play in aquatic ecosystems?

Back

They act as natural water filters and provide habitat for diverse species.

Front

Explain the concept of 'trophic levels' in aquatic food webs.

Back

The hierarchical levels in an ecosystem, comprising producers, primary consumers, secondary consumers, and so on.

Front

What is the significance of dissolved oxygen in aquatic environments?

Back

It is essential for the survival of aquatic organisms, particularly fish and invertebrates.