cartilaginous fish

jaws developed from

• fins

• gill arches

• bones

• teeth

The structure labeled #5 is the

• dorsal fin.

• gill filament.

• operculum.

• lateral line.

The lateral line system enables a fish to

• detect vibrations in the water.

• see objects at a distance.

• smell.

• swim rapidly.

Fish breathe using

• gills

• lungs

• antennae

sharks have a skeleton made of

• cartilage

• bone

• tendons

• skin

When the blood and water in gills flow in opposite directions, that is known as

• oppositional flow

• simple diffusion

• countercurrent flow

• congruent flow

what is the gender of this shark?

• male

• female

Tags

NGSS.MS-LS4-2

Reorder the sense in order used for hunting

• tactile

• lateral line

• electroreception

• sight

• olfaction

why would a shark touch its prey before it bites it?

• to determine if it will attack

• to determine if it is edible

• to determine if it is sick

• to determine if it smells good

placoid scales help a shark...

• swim faster

• eat more

• breathe more oxygen

• find prey