A contraption that automatically fits deer with a pesticide-impregnated collar is helping to tackle the menace of Lyme disease, which is usually spread among people by ticks that live on the deer. This disease is now one of the fastest spreading infectious diseases in the US and can be fatal. Trapping and treating every deer in a forest with pesticides isn't easy, so a machine has been designed to do it. The animals are lured to a feeding tray where they have to place their heads in a V-shaped trough to get to the food. The machine keeps an open pesticide-impregnated collar at the ready, drooping next to the trough where the deer will put its neck. As the animal takes the food, its neck presses down on a switch that triggers a spring-loaded arm. This propels one end of the open collar over the neck where it meets the other end. The two ends join using Velcro, so within seconds of the animal's arrival the collar is complete.
We understand from the passage that the collars are fitted to the deer ____.
while their heads are firmly held in a V-shaped through
while they feed and the process only lasts seconds
as fast as possible because the deer dislike the process
with a mechanism that has to be man-operated
before they are allowed near the food
We understand from the passage that Lyme disease _____.
is one of the rarer of the infectious diseases
has killed a great many deer in the US
is rapidly on the decline in the US
is carried and spread by ticks which live on deer
affects deer more than any other animal
The passage is about a special collar for deer which ____.
is impregnated with a poison that kills the ticks on the deer
keeps them tick-free and safe from Lyme disease
replaces the older system of spraying them with pesticides
is part of a research project to keep track of their movements
has been designed to keep a check on their eating habits