Answer:
Evolution is change in the heritable characteristics of biological populations over successive generations.
Explanation:
An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.
The correct asnwer to your question - why would a group of antelopes leave the herd for search of a better grassland is an example of emigration - B.
These antelopes would emigrate to a certain grassland and be immigrants in that grassland. This has to be distinguished.
Answer:
B:DNA in the chromosomes in a cell
Explanation:
The researcher could look for the presence of proteins, because viruses have a envelope (capsid) composed of proteins that involve their genetic material. The capsid may have a helical or icosahedral structure and is extremely regular. Viroids cannot synthesize any type of protein, so differentiation is possible.