Unit 8 Test Review

All animals belonging to the order Cetacea are whales.

• True

• False

Tags

NGSS.MS-LS4-2

The jawless hagfish belongs to the class Agnatha.

• True

• False

A fish heart has two chambers.

• True

• False

The class Chondrichthyes includes sharks and rays.

• True

• False

Amphibians are characterized by having a three-chambered heart.

• False

• True

Reptiles are cold-blooded animals.

• True

• False

What is considered the most significant threat to manatee populations?

• Natural predators like sharks and alligators.

• Habitat loss due to coastal development.

• Boat collisions.

• Disease outbreaks.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

Most sharks and rays fertilize their eggs________________.

• Externally

• Internally

• Rarely

• Asexually

Traits that make sharks and rays successful predators include

• a light cartilage skeleton

• backward-pointing denticles

• ampullae of Lorenzin

• lateral lines

• all of the above

Members of class Aves share the characteristic of (select all that apply)

• feathers

• forelimbs that are wings

• a three-chambered heart

• laying internally fertilized eggs

Tags

NGSS.MS-LS4-2