Answer:
a. The corn borer must have or generate (by mutation) heritable variation in resistance to the toxic protein.
b. The resistant corn borers must survive better or reproduce more than nonresistant corn borers.
Explanation:
When there is a change in the surroundings of organisms, some genetic variations become beneficial to the organisms. Natural selection favors the organisms having these genetic variations.
The development of resistance in the corn borer population requires the presence of the gene for the resistance in the population. If there is no gene already present in the population, there should be a mutation to give rise to such gene/s. The corn borers having this gene should be able to survive better in the presence of the toxic protein and should leave more progeny in order to increase the frequency of the gene in the population over the generations.
The answer is "populations." It changed throught the gene pool of populations. Hope that helps.
~Deceptiøn
Answer:
Birds feathers are modified scales. true or false
Explanation:
Answer:
No.
Explanation:
Gut bacteria actually helps digest our food and creates a process that allows us to eat and stay alive. Without these crucial bacteria we might not be alive
Answer:
No
Explanation:
Africa and South America are not the same so NO