33. Folivorous insects typically remove annually a. no more than 0.1% of the lea
ID: 206757 • Letter: 3
Question
33. Folivorous insects typically remove annually
a. no more than 0.1% of the leaf material produced by a forest.
b. between 2 and 5% of the leaf material produced by a forest.
c. more than 10% of the leaf material produced by a forest.
d. between 5 and 10% of the leaf material produced by a forest.
e. None of the above.
34. Mechanical transmission of typhoid fever can occur via members of
a. Muscidae and Reduviidae.
b. Tabanidae and Culicidae.
c. Reduviidae and Siphonaptera.
d. Muscidae and Calliphoridae
e. Culicidae and Muscidae.
35. Cockroaches
a. are vectors for many common human diseases.
b. have been associated with cases of human asthma.
c. mechanically transmit bacterial diseases.
d. All of the above.
e. Two of the above.
36. From a medical perspective, global warming is important because
a. many insect vectors of disease will not be able to expand their distributions.
b. the distribution of insect vectors of disease will be increasingly limited by regional temperatures making their control problematic.
c. many insect vectors of disease will be found in areas where they have not been previously recorded.
d. All of the above.
e. None of the above.
37. Killer bees
a. are a unique species of bee imported from Africa in the mid 1950’s.
b. are more aggressive than non-africanized honey bees.
c. are larger than non-africanized honey bees.
d. Two of the above.
e. All of the above.
Explanation / Answer
34) Mechanical transmission of typhoid fever can occur via members of Muscidae and Calliphoridae (d).
Typhoid is a fecal- oral infection which usually involves animal vectors (mechanical transmission).
The non biting domestic flies like house flies ( Muscidae) and Blow flies ( Calliphoridae) are most widespeard insects in the world and they are associated with many human infections like those infect between people or those that get transmitted from feces to food.
35) All of the above (d).
Cockroaches are vectors for many common human diseases. They can mechanistically transmit bacterial disease also. Examples include Salmonella typhi which causes Typhoid, poliomyelitis which causes polio and even dysentery. Cockroaches are also responsible for triggering Human asthma. The saliva, feces and body parts of cockroaches are responsible for triggering asthma.
36) Many insect vectors of diseases will be found in areas where they have not been previously recorded (c).
Global warming is a phenomenon in which tha Average Surface Temperature of earth increases. It creates huge impacts. And at the same time it is also important with regard to medical perspective because, increase in temperature can have an effect on disease transmission that is mainly through insect vectors.
Many insects, bugs and arthropod vectors increases with increase in temperature. For example the vectors of Dengue fever and Zika virus (Aedes aegypti), require hot and dry climates to spread. So, as warmer temperauters across the Earth spreads, the Vectors also spreads to these new areas , even cross continents spreading diseases to more people.
This ultimately results in appearance of insect vectors in areas which were not previously occupied by these vectors.
37) All of the above (e).
Killer bees are commonly known as Africanized bees, because they were imported from Africa to brazil so as to increases the honey production. Their typical name,' Killer Bees' itself refers to their agressive behaviour. They are more defensive and they react faster to disturbances. They are even capable of killing humans as well as animals by chasing and stinging them. And their boidy size is usually larger than that of the non Africanized honey bees.
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