GEOLOGY

EARTH SCIENCE

GEOBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A researcher sprays a new pesticide on thousands of insects of the same species that live in a large field. A few of the insects survive. What can be concluded by the researcher?
A
The species of insects will likely become resistant to the pesticide.
B
The ideal interval between the first and second applications of the pesticide should be increased.
C
The pesticide has no effect on the species.
D
The concentration of the pesticide was too weak.
Explanation: 

Detailed explanation-1: -Answer and Explanation: The Correct answer is D. A number of genetically resistant pesticide survivors reproduce. The next generation of insects contains more genes from the survivors than it does from susceptible individuals.

Detailed explanation-2: -According to Charles Darwin’s theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

Detailed explanation-3: -Today, scientists can compare their DNA. Similar DNA sequences are the strongest evidence for evolution from a common ancestor.

Detailed explanation-4: -Evolution is defined as the change in the inherited traits of a population of organisms through successive generations. When living organisms reproduce, they pass on to their progeny a collection of traits.

There is 1 question to complete.