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.
Answer:
Each phospholipid is made up of 2 fatty acid molecules, a phosphate group and a molecule of glycerol.
The fatty acid molecules are formed by long chains of carbon and hydrogen.The phosphate group is formed by an atom of the element phosphors which is attached to four oxygen atoms. The fatty acids make the tail and are hydrophobic. The phosphate group makes the head.
Due to their structure, phospholipids are best suited to make the cell membrane in organisms.
Answer:
Product Quality · Nutrition and Feeding · Health and Care What determines whether an insect population explodes or just moves Eggs may hatch in spring into parthenogenetic females, the beginning of the new line, to see if we can observe any of these phenomena on captive aphids on.
Explanation:
A. Medical collateral ligament
