Jane is studying the pesticide resistance in weavels she has a natural original population that she has fed food with pesticide over many generations she notices that the death rate has grown smaller and smaller. What type of evolution study is this?

ZOOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Jane is studying the pesticide resistance in weavels she has a “natural” original population that she has fed food with pesticide over many generations she notices that the death rate has grown smaller and smaller. What type of evolution study is this?

A	Macro Evolution
B	Micro Evolution
C	Genetic Drift
D	Population Study

Explanation:

Detailed explanation-1: -We have simply caused pest populations to evolve, unintentionally applying artificial selection in the form of pesticides. Individuals with a higher tolerance for our poisons survive and breed, and soon resistant individuals outnumber the ones we can control.

Detailed explanation-2: -Subsequent uses of the pesticide increase the proportion of less-susceptible individuals in the population. Through this process of selection, the population gradually develops resistance to the pesticide. Worldwide, more than 500 species of insects, mites, and spiders have developed some level of pesticide resistance.

Detailed explanation-3: -Effects of pesticide selection Repeated use of the same class of pesticides to control a pest can cause undesirable changes in the gene pool of a pest leading to another form of artificial selection, pesticide resistance.

Detailed explanation-4: -(b) An increase in cabbage loopers (Trichoplusia ni) and (c) in beet army worms (Spodoptera exigua) were seen when plots were sprayed against the target lygus bugs (Lygus hesperus)-both are examples of secondary pest outbreaks.

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ZOOLOGY