Fishes and Amphibians G6

Skates and rays belong to Class (a)   .

Hagfish belongs to Class (a)   .

Tuna and salmon belong to Class (a)   .

Which of the following classes of fishes have cartilaginous skeleton?

• Class Agnatha

• Class Chondrichthyes

• Class Osteichthyes

What is the name of the smallest amphibian that was discovered on Papua New Guinea?

• Chinese Giant Salamander

• Paedophryne amauensis

• Pandaka pygmaea

• Butanding

It serves as the only opening for intestinal, reproductive and urinary tract for amphibians.

• cloaca

• anus

• rectum

• colon

 It is an adaptation of fish that blends with their surroundings such as  the tropical fish.

• camouflage

• molting

• schooling

• metamorphosis

Which of the following undergo external fertilization?

• frog

• toad

• caecilian

• salamander

Fishes have the ability to regenerate their limbs.

• TRUE

• FALSE

It is a gas-filled sac that gives buoyancy or the ability of fish to float on water.

•  lungs

• gills

• swim bladder

• gallbladder