BIRDS

Birds appeared:
1. from reptiles in the Mesozoic era
2. from reptiles in the Tertiary era
3. from reptiles in the Palaeozoic era
Vane feathers:
1. cover the body, the neck, the remixes
2. are the thermal insulation
3. are only on the wings
A follicle is:
1. a place, where the feathers grow
2. a place, where feathres do not occur
3. a place with a small amount of feathers
Feather exchange is called:
1. moulting
2. falling out
3. a naked place
The place where massive flying muscles are attached is called:
1. a carina
2. ribs
3. a collar bone
...........have the most perfect hearing.
1. Singing birds
2. Owls
3. Climbers
The body temperature with birds is:
1. 42 degrees
2. 36 degrees
3. 50 degrees
..........belongs to feeding birds.
1. A partridge
2. A pheasant
3. A blackbird
......belongs to unfeeding birds.
1. A pheasant
2. A swallow
3. A blackbird
Utter the mating call is:
1. a special type of behaviour connected with the reproduction
2. a special type of behaviour connected with offsprings care
3. a special type of hunting