Chapter 4 Flashcard Part 2

Front

What is a cartilaginous fish?

Back

A type of fish that has a skeleton made of cartilage instead of bone, such as sharks and rays.

Front

How many species of saltwater fish are found in Texas?

Back

1,500 species.

Front

What is a crustacean?

Back

A type of aquatic animal with a hard shell, such as crabs, lobsters, and shrimp.

Front

What is the primary consumer of phytoplankton?

Back

Zooplankton.

Front

Why are aquatic invertebrates important to aquatic ecosystems?

Back

They make up much of the food larger aquatic organisms eat, are excellent indicators of the health of an aquatic habitat, and help breakdown organic matter.

Front

What is phytoplankton?

Back

Microscopic plants that float in water and are a primary source of food for many aquatic organisms.

Front

What role do zooplankton play in the aquatic food web?

Back

They are primary consumers that feed on phytoplankton and serve as food for larger fish.

Front

What are the main characteristics of crustaceans?

Back

They have a hard exoskeleton, jointed legs, and are mostly aquatic.

Front

What is the difference between bony fish and cartilaginous fish?

Back

Bony fish have a skeleton made of bone, while cartilaginous fish have a skeleton made of cartilage.

Front

What is the significance of biodiversity in aquatic ecosystems?

Back

Biodiversity helps maintain ecosystem balance, resilience, and provides various resources.