The answer would be: the sympathetic division of the autonomic system.
Sympathetic division of the autonomic system causes the person to enter fight or flight mechanism. All of the changes above will prepare the person for it. Increased breathing will increase oxygen delivery for muscle, sugar release will increases energy produced, inhibition of digestive system conserve the energy,
50% if the B blood type parent is heterozygous
Nucleolus is not connected to the nucleus via nuclear pores.
<span>Nuclear pores are protein complexes that cross double membrane of the nucleus and allow the transport of molecules across the nuclear envelope (double membrane): from the nucleus to the cytoplasm (RNA and ribosomal proteins) and into the nucleus (proteins, carbohydrates, signalling molecules and lipids).</span>
X ( inherited ) chromosomes!!!!!!!!!!!!!!!!!!!!!