Lack of natural predators allows for unrestricted growth
Answer:
because that is where they were founded
Answer: when conditions for survival are unfavorable
Since there is two organism involved, sexual reproduction also increase the genetic variability of the population. This makes the population could adapt in wide condition. When the condition of the habitat changes and make survival is harder for general population, there might be someone with genetic variability that become favored instead.
cardiac, smooth, and skeletal
Hope this helps!
-Payshence xoxo
