Answer:
there is a good and bad effect on the world, the positive reason being economically. smoking is a great money maker it was worth US$88 billion dollars in 2018. the negative reason is the pollution and what it does to the human body such as cancer
Explanation:
The correct answer for this question is "shaded square." The symbol that would the horse breeder use to show a male who is affected by a defective gene is the shaded square. <span>Pedigree charts use shaded symbols to show organisms that have a particular trait, such as a defective gene, being traced in the chart. </span>
Answer:
Only some species may survive the event
Explanation:
Evolution is most likely to occur when catastrophic events alter community composition. Catastrophic global event can influence that only the hardiest, generalist species may survive. Specialists may be left without food and starve.