Contour feathers

• are flight feathers, they're longer

• are short,fluffy and provide insulation.

What is preening?

• A bird cleans his feathers.

• A bird fluffs his feathers to impress a female.

• A bird makes a nest.

• A bird pulls oil from the skin down the feathers.

Tags

NGSS.MS-LS1-4

Which of the following describes most birds' bones?

• hollow

• very heavy

• lightweight

• birds don't have bones

Endothermic means that an animal

• stays inside.

• produces its own body heat.

• cannot eat.

• has hair.

Most mammals are

• pouched/marsupials.

• egg-layers.

• scaly.

• placental.

The largest order of mammals is

• birds.

• rodents.

• dolphins.

• hoofed mammals.

Which of the following are egg-laying mammals?

• kangaroo

• duck

• echidna

• platypus

Which of the following are marsupials?

• koala

• kangaroo

• anteater

• opossum

Which of the following body structures is not present for a bird?

• wings

• feathers

• teeth

• gizzard

Define hemotoxin

• a poison that attacks blood vessels

• a poison that attacks the nerves

• a poison that attacks the skin