The answer is D. Failure of chromosome pairs to separate
Nondisjunction is a condition when sister chromosomes fail to separate proprly during cell division, leaving them with extra cromossom
Nondisjunction is the main cause of genetic abnormality which make an individual suffer from a down syndrome ( causing an intellectual impairment)
False lolololololollolol sorry i have to do 20 letters
the process by which the structure of a biological community evolves over time. Two different types of succession—primary and secondary—have been distinguished. Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary succession occurs in areas where a community that previously existed has been removed; it is typified by smaller-scale disturbances that do not eliminate all life and nutrients from the environment.
Cancer cells would grow, as they would start to divide because of the mutation in their DNA that doesn't allow it to stop reproducing.
a. cancer
