Openings on a sharks head that aid in breathing are _________.

The _________ runs down the length of the body of a fish and is a sensory organ.

Bony fish maintain neutral buoyancy in the water with their ______.

Which of the following is a cartilaginous fish?

A Sea Horse is a _________.

The scientific name for fish that have a bony skeleton is ________.

Which of the following is a jawless fish?

All of the fish belonging to the Class Chondrichthyes have a skeleton made of ___.

A fish has a ________ chambered heart.

12. Most fish reproduce ________ and fertilize ________.

Jawless fish belong to the class-

12. Pelvic fins that are modified for transfer of sperm to the female shark are called-

The world’s largest known bony fish is the-

Coloration which is dark on the back, light on the belly is called-

95 Percent of fish are this group

Most fish have a coat of slime on their bodies.

Most fish have scales

Which are the top predators in ocean food chains?

Which group is mostly parasites?

Which group has a swim bladder?

open ocean; massive area with lots of sunlight and diversity of life

microscopic animals that eat phytoplankton

An underwater plain on the deep ocean floor; covers more than 50% of the Earth's surface

Place the ocean zones in the correct order from top to bottom.

In what zone does approximately 90% of all ocean life live?

Which layer of the ocean starts at 600 feet and extends to 3000 feet?

There’s very little life, immense pressure and absolutely no sunlight in this zone. Name it.