Which of the following is NOT a cartilaginous fish?

• Ray

• Eel

• Shark

Which of the following is NOT a jawless fish?

• Eel
• Hagfish
• Lamprey

What organ helps a bony fish to stay at a certain depth in water?

• swim bladder

• operculum

• lateral line

• dorsal fin

An ADULT frog can get it's oxygen through:

• gills & lungs
• gills only
• lungs only
• lungs and skin

Fish are warm-blooded.

• true

• false

Fish are.

• vertebrates

• invertebrates

• cnidarians

• arthropods

Fish breathe oxygen in water using its

• gills

• lungs

• nerves

• backbone

Toads are amphibians.

• true

• false

Amphibians go through a transformation called

• morpholisis

• metamorphosis

• metalmorphosis

• incomplete life cycle

Which of the following is a characteristic of MOST amphibians?

• they have poisonous glands

• they begin life as aquatic organisms

• they breathe with gills throughout life

• they have dry, scaly skin