The answer is 4 because we are talking about pairs of homologous chromosomes and there two copies are held together and they are located in the centromere.
Synapsis is two homologous chromosomes pairing. During the event of <em>meiosis </em>homologous chromosomes are being pared but then also separated because of reducing the genetic content of the resulting haploid cells.
it's predation because without predation, there would be no way to sustain a healthy balance of predator and prey. therefore animals will populate to much or too little.
By using universal terms and anatomical position when identifying human body parts, there is very little room for error or confusion as to which part you are referring.
