Birds (L.5)

Question 1

Archaeopteryx

Answer 1

Extinct bird that had distinct and obvious reptilian features (wings and claws)

Question 2

Barbules and barbs

Answer 2

Barbules - minute filament projecting from the barb of a feather
Barb - spike like structure used for attachment

Question 3

Beak

Answer 3

Hardened feeding structure

Question 4

Air sacs

Answer 4

lung compartment containing air

Question 5

Cerebellum

Answer 5

Portion of the brain, posterior to the cerebrum that functions to provide spacial orientation

Question 6

Contour feathers

Answer 6

Feathers that cover surface of birds and contributes to their sleek surface shape and colouration

Question 7

Cloaca

Answer 7

Opening at posterior end of vertebrates other than mammals

Question 8

Crop

Answer 8

Storage organ of digestive system of birds

Question 9

Down

Answer 9

Fluffy type of feather that provides insulation

Question 10

Endotherms

Answer 10

Organisms that generate and maintain their own body temperature

Question 11

Flight feathers

Answer 11

Large feathers of birds used to push against air enabling flight

Question 12

Gizzard

Answer 12

Muscular organ used to grind food

Question 13

Incubate

Answer 13

keep (eggs, cells, bacteria, embryos, etc.) at a suitable temperature so that they develop

Question 14

Optic lobes

Answer 14

Part of cerebrum specialized for the integration of impulses from the eyes

Question 15

Retina

Answer 15

Light sensitive surface at the back of the eye

Question 16

Sternum

Answer 16

Breast bone (located on ventral surface of vertebrates)

Question 17

Syrinx

Answer 17

Voice-box of a bird

Question 18

Pelvic girdles

Answer 18

ring of bones around body at the base of spine

Question 19

Raptors

Answer 19

Predatory bird (has a hooked beak and grasping claws)

Question 20

Uric acid

Answer 20

waste product left over from normal chemical processes in body and found in urine and blood

Question 21

Vane

Answer 21

Flat surface structure of a feather designed to catch the wind