Hummingbirds reveal secrets of sipping – answers

correct the sentences

1. Scientists began studying the humming bird only very recently. they have held a theory for 200 years so we must assume that there have been studies on the bird for that long
2. The birds eat insects from flowers. nectar not insects
3. Scientists believed that the birds uses caterpillar action to eat. capillary action
4. This is an active process. it is a passive process
5. The tube to do this is the bird’s beak. it is the bird’s tongue
6. The researcher in this case used a high speed camera and a clear plastic feeder to film the process. the feeder is clear glass
7. The student has now confirmed the theory on the bird’s eating method. he has ‘de-bunked’ this refuted or disproved it
8. He found that the bird’s beak separated into tiny tubes to trap nectar. the tongue separates in the process
9. The research could hep us with our understanding of mechanics. fluid mechanics
10. We may even eventually find the ultimate map. the ultimate mop!