Answer:
It's option A- Solid
Explanation:
Solids have definite shape and volume.
Asexual:
One parent
Identical offspring
Less developed organism
Faster time period to produce
Sexual
Two parents
Unique offspring (genetic variation)
More complex organism
Slower time period to produce
Cation-exchange chromatography is used when the molecule of interest is positively charged, the stationary phase is negatively charged and positively charged molecules are loaded to be attracted to it. So, the amino acids with negative charge will elute the first. Glutamate, leucin, arginine is the order of elution because of their pI values ~3, ~6 ~10.
The survival of the 2 percent of the population is due to the presence of a gene obtained from other species. This gene must be responsible for developing resistance in the insects, against the insecticide that was used by the farmer. The gene got incorporated in only 2% of the insects and therefore, they survived and rest of them were susceptible to the insecticide and thus, died.