The Many Colors of Birds Quiz

Based on the "Blues" section of "The Many Colors of Birds," what is keratin?

• It is a protein found in living things.

• It determines the coloration of bird beaks.

• Keratin is a pigment that makes things appear blue.

• Keratin is a chemical found in food birds eat.

Based on the information in the "Reds, Yellows, and Oranges" section of the text, what makes birds' feathers red, yellow, or orange?

• pigments in the foods that birds consume

• feather cells that absorb all the colors of light

• light that bounces off the keratin in barbules

Which answer best describes the overall structure of the 'Feather Structure' section of the text?

• It discusses how the size and arrangement of feather barbs and teeth determines their color.

• The text explains how the shape of birds' feathers affects how well they fly.

• It tells how the feathers of macaws and blue jays are different from other birds.

• The text describes how the color of bird feathers becomes lighter as birds grow older.

Flight feathers are stronger than other bird feathers.

• Necessary

• Unnecessary

Melanin is a pigment that is produced in some birds' bodies.

• Necessary

• Unnecessary

The more melanin a bird produces, the darker black or brown its feathers will be.

• Necessary

• Unnecessary

Black and brown birds have less pigment in their feathers than others birds.

• Necessary

• Unnecessary

These sifakas and their difficulties may alert other scientists studying primates in other rain forests to watch for similar problems.

• Yes

• No

Scientists think this lack of milk could be the reason that fewer babies survive dry times.

• Yes

• No

Primates are animals like monkeys, apes, and even humans.

• Yes

• No