Exploring Fish Diversity: Chondrichthyes and Osteichthyes

Which class contains only bony fishes?

• Agnatha

• Chondrichthyes

• Placodermi

• Osteichthyes

What is the primary function of gills in fish?

• Digestion

• Movement

• Gas exchange

• Excretion

How do fish typically move?

• By jet propulsion

• Using their gills

• Alternating muscle contractions

• Flapping their fins

Which class of fish has a swim bladder?

• Both A and B

• Osteichthyes

• Neither A nor B

• Chondrichthyes

Why are sharks important to marine ecosystems?

• They provide essential nutrients

• They regulate the population of their prey

• They are a primary food source for humans

• All of the above

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5